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Scientific Communication Blog

"THINK READER" - The self-Published book is out!

6/1/2019

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June 1st 2019. Today is a great day. After writing three books and publishing them the "classic" way, through World Scientific Publishing, I ventured into the fascinating world of Self-Publishing, using Leanpub, and used Leanpub as a springboard to jump to Apple books and Amazon Kindle.
I love the ability to update the book live when I have something new for the reader. The author royalties are higher, but the marketing effort is colossal, and not for the lazy or the faint-hearted. And it costs money too!

I made a few discoveries while researching in preparation for the book. Each discovery found an immediate application in improving writing skills.

The first one came from an unexpected field: physiology. Memory and attention share some of the same neurotransmitters, sometimes acting in synergy, sometimes in opposition. What is means for the writer is that every time reader attention is raised, memory benefits or suffers, depending on the context. If the reader is distracted by the writer—a tangential remark for example, or a digression which does not directly support the main idea—the reader's memory of the writer's main discourse will be diluted and the trace of reading in long-term memory will be lessened. 

The second discovery came from my realization that the reader needs to reconstruct the writer's thoughts from words which do not necessarily mean the same, or carry the same content as the reader's words. Hence, the source for misunderstanding and confusion. are not so much the written words, but their representation in the reader's mind. It befalls the writer to anchor each word in a larger context so as to avoid misunderstanding.

The third discovery came from grammar. I always thought that grammar was neutral and does not impact the feelings of the reader. This is not at all the case. Grammar helps the writer influence the reader is a major way. Not only words give the writer a voice, but also the way these words are played out in clauses, and the order these clauses have in a sentence.

The fourth discovery, and I'll stop there, for these were the most important ones, is the difference in information access between text and visuals.  A paragraph has one entry point: t's first word. That's all. A visual has many entry points to choose from. The reader enjoys freedom of choice. However, with abundant choice has a cost: indecision and even misunderstanding! The writer should guide the reader in selecting the optimum path to understanding.

I know it is self-serving, but in the end, why does a writer write, if not to help his fellow reader, so I want to encourage you to read THINK READER to increase your writing skills.

​Happy reading!

The book page on this site contains the answers to the exercises in the book's last chapter. It also has hot links to the URLs for those who have bought the printed version of the book on Amazon.

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Negative reviewer comments on your research article

2/5/2019

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ing Depending on your temperament, you may first want to blow your steam, hit a punching bag, or simply fume and blame the world for the crappy reviewers that don’t understand a thing. Once you’ve gotten over it, remember again that you are a researcher, so research. Research the cause for each negative comment. Here are a few of the causes you might find.
​

  1. Y our English is not up to snuff.  It seemed clear at the time, but now you even wonder if you are the one who wrote this crap! How many times did you rewrite before sending your paper to the journal? Obviously not enough times. So blame yourself, rewrite, and apologize for that lack of clarity. (Don’t promise you’ll never be unclear again. You will.)
  2. The reviewer’s English is not up to snuff. You tried to write like Proust, long ramblings sentences that contained enough detail to discourage the most eager reader. You are a master in handling complexity within the boundaries of two periods. You have nested your main clause inside a cluster of subordinate clauses, each with their own dependencies. The reviewer did not recognize your genius. They want simple sentences that they can easily understand as they are often pressed for time and review your masterpiece for free anyway. So humble yourself, become a Hemingway instead of a Proust. Rewrite in simpler sentences that will clarify what you mean, and apologize for the lack of clarity.
  3. Your Science is not up to snuff. They poked holes in your not-so-tight reasoning. And they are right! Gee, despicable you! How dare you pollute the world of science with your imperfect thinking. Don’t you hate it when people are right and you’re not? Grow up. That’s what you did for many years, and it’s not over yet. Take it in stride. Thank the reviewer profusely for making you a better researcher, and protecting Science and others from your errors. Do what they want you to do, if reasonable. If not, then argue politely whilst still admitting that they made a good point which got all your attention. Plead that your contribution, although not as gargantuan as you would have liked, is still sufficient to publish in the interest of moving science forward at a faster pace. Elephants give birth every four years, but you are all for giving Science its daily egg.
  4. Their Science is not up to snuff. They think they are poking holes with their red pencils in what turns out to be a ten inch thick armored steel plate. It is a sad world out there. Don’t cry for me, gelatina. You are weak, and I am strong. So defend yourself in the most civil manner. Apologize for not making truth self-evident. Clarify a paragraph. Add a few missing references. Send fifty more pages in supplementary material (scientific filibuster). Whatever you do, do not complain to the editor who happens to have chosen that reviewer, and it would look bad on him or her. And the next time you send a paper to that journal, suggest your own list of reviewers.
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Short Vs. Long Presentations - and The Winner is...

12/9/2017

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Mark Twain's quote should drive our behavior: “If you want me to give you a two-hour presentation, I am ready today. If you want only a five-minute speech, it will take me two weeks to prepare.” I teach scientific presentations, and I let the participants choose between a 7 minute presentation with a maximum of 7 slides including title and conclusion,  and a four minute presentation with a maximum of 5 slides. The second slide in each scenario is always the highly visual "hook" slide.
 It does take more time to prepare 5 slides than it takes to prepare 7. More filtering, more focus, more thinking  is required - as illustrated in Mark Twain's quote. The returns on your time investment are high however. The success rate  and the number of questions at the end of your presentation are inversely proportional to the number of slides.
​Why is less more?

Here are three good reasons.
  • 1. By focusing on the essential, highly specific details requiring a higher prior knowledge of the topic are left out. Less is more. 
  • 2. By setting audience interest instead of audience knowledge as your goal, the number of questions is greater. Interest can be generated in fewer slides and more visually than knowledge.
  • 3. As the number of slides increases, the distance increases between the title (the bull's eye in a target) and each new slide (a new ring moving away from the center). The audience is losing the main thread set by the title. Attention is divided.
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Explaining the no-question during a Q&A session

11/28/2017

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Is it the audience or the presenter's fault?

Have you ever wondered why people who are neither dumb nor blind become mute when the time comes for them to ask questions at the end of your presentation? The reasons are audience or presenter-related.

AUDIENCE-RELATED


  • The Elephant in the Room. In some countries (Japan comes to mind), the attendees may consider impolite to talk before a more senior person in the room does ( a dean, an official,…). That person may just be there for moral support, politeness, or prestige, but not interest. Often unfamiliar with your topic, that person does not want to appear ignorant in front of the rest of the audience by asking an unprepared question. However, fear not, the questions will come as soon as that person fires the first question or leaves the room. Stick around outside the presentation room for a real Q&A.

  • The Shy Audience. Some people are as petrified to ask questions as the presenter is to present. They want to know more, but to leave their permafrost state, only the presenter's warming smile, genuine openness and generous eye contact may take them out of that state. The audience needs body language to be encouraged to ask questions. Move towards the audience. And wait. Let the unbearable pressure of silence work its tongue loosening magic. But let that not be your tongue! It is the audience’s turn to speak.

  • The Proud or Discrete Audience. Some questions would reveal things about the questioner that the questioner does not wish the rest of the audience to know. They may reveal their lack of knowledge, of ethics,  or social skills, a speech impediment, a strong accent, or unsightly corporal features.  A one-to-one question after the talk is less intimidating. So make yourself available right after your talk.

  • The Inordinate Time to the First Question. The audience expects someone somewhere will ask a question. It usually comes from center front, rarely from the sides. If the first question does not come within a time collectively felt as being reasonable (the smaller the audience, the smaller that time), the audience draws negative vibes from the continued silence which it turns into a sanction and a blame. By then, even the ones who were going to ask a question given a little more time or somebody else's earlier question, give up and leave since other people have already started to leave the room. Talk to the chair of your session before your talk. He or she may be encouraged to ask the first question.

PRESENTER-RELATED


  • The Unquestionable.  Things you said may be so obvious and clear that nothing you said raised question. Your presentation may not have been bad, but it probably was not useful. The facts you presented were unquestionable. because they were too well-known. They lacked novel significance or implication statements. They were presented from a classic, unoriginal point of view.

  • The Unknowledgeable. Some things you said during your presentation are blatantly wrong, and the audience is knowledgeable enough to know it. They could attack you, but in the process, would embarrass you. So they simply stay quiet, and leave. They were there to learn for an expert. You were not that person.

  • The Arrogant. Alas, some presenters have a knack to make the audience feel out of place. They mention their elitist friends during the talk, say several times that only a minority of people are smart enough to understand the problem. And by the time the talk ends, you know you are part of the majority. They cocooned themselves away from any potential question. Withdrawn, stern face turned away from the audience as they gather their makeshift notes, their body language clearly communicate they are not inclined to answer questions.

  • The Vanishing. WAIT! Do not do your disappearing act, immediately closing any opportunity for questions with a lame statement like “I must have been very clear since you have no question”, and rushing off stage.

  • The Jargonaute. The jargonaute’s talk is for people from planet science. Unfathomable, undecipherable, impenetrable, it is not of our world. As minutes pass by, the audience discovers that an abyss of ignorance separates it from the jargonaute. People want pebbles of knowledge, not kryptonite. No question the jargonaute is an expert. No question!
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Scientists anonymous  - a tale for recovering scientists

10/3/2017

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Everything you read is happening in your mind using the images I provided. The material for simulation today is a science fiction story based on the assumption that writing habits influence speaking habits, a reasonable assumption for educated people. 

What if it applied to scientists…
 
When you are ready to start the simulation just take your eyes to the next paragraph, and let your mind do the rest.  Time for me to get a cup of a medium-roast rainforest coffee :)
 ------------------------------------------------------------------------------------------------

It all happened in the name of Science. An anonymous survey among scientists revealed that science was not as rigorous as people assumed it to be. Reproducibility of results was low. In a bold move to restore confidence in scientific publications, the journal owners replaced their senior (in experience) editors with senior (in age and experience) scientists who imposed their writing style. Everything had to be written using the passive voice. Mentioning oneself was strictly prohibited. Captions of figures and tables were restricted to two lines. Facts had to be thoroughly established before the present tense could be used. And wherever a quantum of doubt existed, verbs indicating possibility were compulsory. This last requirement terrified honest scientists who got into the habit of turning well demonstrated facts into probable ones. 
 
Scientists found themselves trapped in a language ghetto. Little by little, the way they wrote influenced the way they spoke. The way they spoke created an affective gap between them, their spouse, their family and the rest of the world. Science had created a language and a style that had spread beyond its paper boundaries to invade the lives of good people. The phenomenon remained largely unnoticed until Suzan, the wife of Dr. Simon Edgar who had committed suicide in his lab, sent her husband's diary to the Washington Post. The diary's last entry dated June 1 2005 became national news.
 
“Today, for Suzan's birthday, a bouquet of flowers was bought. Prior to offering the flowers, the phrase “My darling, I love you” was repeated many times privately. She was then approached. When standing in front of me, after she had remained for at least seven seconds waiting, I heard myself saying “you are loved by me.” Tears of frustration appeared on her face and the flowers were not well received. I HATE WHAT SCIENCE HAS DONE TO ME AND I HATE MYSELF ”
 
The story spread to CNN and National Public Radio and before soon, scientists all over America exposed the destructive role language had played in their relationships with family and friends. So when Dr. Mark Whyndam, a scientist who, like Dr. Simon Edgar, had faced such hardships launched “Scientists Anonymous”, chapters of this society spontaneously opened not just in America but all throughout the world.
---------------------------------------------------------------------------------------------------- 
 
“I’ll be brief”, said William. It was his third meeting at the Berkeley chapter of ‘Scientists Anonymous’. The meeting had just started. He introduced himself to the other three scientists sitting in the university lounge.
          “William, name common knowledge to some in attendance; Graduate of U.C.S.D; Domain, bio; Scientists anonymous, three months yesterday, doing better.”
His tone of voice indicated he had finished speaking, so the others clapped and said they valued his contribution according to the ritual common to all S.A chapters. William was concise to a fault.
          “I am Roberto”, announced the man sitting to the left of William. “Last week, I worked on my family photo album and replaced the captions of ‘picture 1—son’ and  ‘picture 2—daughter’ with more informative text. He opened the album on his lap and read aloud ‘My son Pedro at his two year old birthday party, face spattered with his first banana split; Ice cream from Walls, bought at Dixon’s ice cream shop and ripe Chiquita bananas imported from Colombia, bought at local food store”.
Roberto was clearly making great progress in writing meaningful captions, even though he still had to fight that compulsive urge to be unduly precise.  “We value your contribution Roberto” was still reverberating when the third participant stood up. She was in her thirties, and wore a conservative grey blouse tucked in a knee length black skirt.
          “Martha, I think, from the University of Nebraska.”
“Good evening Martha”, they chimed in.
            “I find it near difficult to be sure about anything. I can be potentially confused when it comes to stating what might be a fact.”
Roberto was the first to break the silence. With a grin, he said “We think we value your contribution Martha”. All laughed.
Last was a young Chinese woman.
“My turn?” she asked as she pointed to her nose.
All nodded with an encouraging smile. She stood up. 
“Xiao Hong, Beijing-based Chinese Academy of Science, PhD in IT. Good evening everyone.
“Good evening Xiao Hong,” the group responded.
 “Yesterday an unlabeled Mother’s Day meshed recyclable thermoplastic laundry basket present was given to mother and received with coldness.” 
After they had reversed engineered the compound noun (this took about 5 seconds), the group shouted “We value your contribution Xiao Hong”!
 
            The meeting had begun…
 
--------------------------------------------------------------------------------------------
 
Quintilian, a Roman who lived in 49AD, in his book ​The Institutes of Oratory , book 1, chapter 6 sentence 44, fully expresses my feelings regarding the scientific writing style: "If custom be merely termed that which the greater number do, it will furnish a most dangerous rule, not only for language, but what is of greater importance, for life."
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Adjectives and Science - a Grammar Tale

8/24/2015

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Famous names in Science were invited to a gargantuan, 15-course banquet presided by Gargantua himself. Albert Einstein, Benjamin Franklin, Blaise Pascal, Leonardo Da Vinci, Louis Pasteur and many more accepted the invitation. On the menu of every course: adjectives. This story is about the first course on the menu - one cryptic word: RED.

The major-domo solemnly brought RED in a regular tureen that would feed a family of five, not an assembly of a thousand guests. Among the few people who grumbled, some had already taken their abacuses, calculators and smart phones to determine how much RED each would have based on the estimated volume of the tureen, size of soup spoon, and number of guests. At the sight of their puzzled face, Gargantua exploded in a gargantuan laugh. The laugh stopped abruptly as he snapped his fingers and a retinue of waiters appeared with a gargantuan cauldron of boiling water.

Each soup plate received one ladle of water, and each guest was asked how much RED they wanted from the tureen. Some, not knowing precisely how much they wanted, said I'd like some, please. Others, hoping RED was in powder form, said a heaped teaspoon. Einstein asked for a relative amount. Sir Isaac Newton took a prism out of his pocket and, after catching a ray of sun, directed the diffracted light to the white tablecloth. I want my soup to have this red color, he said, pointing at a precise hue in the rainbow. Using teaspoons to reach the right color proved impossible . The plate had already been emptied many times  - the soup was redder than red. Pasteur, offered to help with one of his own inventions: the pipette. Reaching the right color drop by drop worked better, but was far too time-consuming for the usually radiant Marie Curie. She  complained about Pasteur's "cold soup technology". Fortunately, Arnold Beckman had bought his spectrophotometer and in no time the renowned philanthropist had helped Sir Newton get his favorite 663 nanometer red, leaving Pasteur a little miffed.

Soren Sörenson insisted he’d be served enough RED so that his soup had a pH of exactly seven to 2 decimal points. To measure the pH, Sörenson had brought a thermometer and his own old-fashioned glass electrodes. The pH measurement  could only start as water temperature reached 30 degrees, so three waiters had been summoned to blow on the soup plate to speed up cooling while more waiters were standing by to drop their grains of alkaline sea salt and drops of lightly acidic RED to reach the requested pH. Again, Arnold Beckman, the hero of the day, came to the rescue with his own creation, the pH meter. Although the instantaneous pH reading  was a time-saver, the measure, not adjusted for the difference in temperature, was inaccurate.

This is when Steve Jobs, although not a scientist, who had been invited on account of his Apple Watch, demonstrated he could run an app on his watch to do just that. Thanks to him, the waiters soon resumed their procession to the relief of Benjamin Franklin, sitting 50 meters away, a hungry man with an empty plate. Had people been watching, they would have noticed that the pocket watch and chain in Franklin's dinner coat had been deftly transferred out of sight to a cavernous place in Franklin's breeches. Another Steve Jobs admirer.

The moral of this short story? Adjectives are subjective. Use them with moderation. What they mean to you may not necessarily be what they mean to others.

Now if you want to know what was the second course on the menu: it was LARGE.
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Trap 5 - The evanescent title slide

4/20/2015

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Picture
Don’t face it, don’t read it, and don’t rush it. Time after time, presenters start their presentation with the most unfriendly gesture : they turn their back on the audience, face the screen and proceed to read a title that the chair has just read in her introductory statements. They then read their name and whatever else can be read on the slide. With that, they move to the next slide without the slightest pause, and since they are already facing the screen, they continue facing the screen!

At the beginning of your talk the title is on the screen because it helps the participants eager to attend your talk to make sure they are in the right room. The title is not meant to be read: it is meant to be explained, to be paraphrased, to be demystified because it is usually dense in jargon. To prepare for that, simply picture yourself having to briefly explain your title to someone who asked “So roughly, what does it mean?” That is what you tell the audience while your title slide is displayed.

While the title slide is on the screen, there is no need to look at it, not once, not ever (think of Lot's wife if you are scripturally grounded). You want full eye contact with your audience. 

I hear you! No reader ever spends much time on the title page of a book, you say, so why should the presenter spend more time on the title slide than it takes to read it? 
You may not need to spend more than 30 seconds on the title slide, but you definitely cannot spend less than 5 seconds. People in the audience need to reset their attention on you and on your topic as they move from one presenter to another, and that takes time. They need time to like you (don’t push it though, they don’t need to love you), to absorb your smile, to move from a neutral to a positive attitude. They need time to understand your topic, and for that, you need to expand the title's shriveled meaning with moisture-rich jargon-free words. And finally, they need time to trust you.  Scientists base their trust on more than good looks or a smile. They infer your credibility from the other information on your title slide: who sponsors your research, who are your co-authors, and who you acknowledge.

The title slide is not just a signpost. 
Don’t face it, don’t read it, and don’t rush it.

More on titles on my blog "when the scientist presents". 



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Trap 4 - The Mouth Trap is Food for Thought.

3/15/2015

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PictureFlickr. Fresh tomato sauce by Urbanfoodie33
It is the 10:15 am coffee break. Outside the conference room is a long table covered in thick cream-colored linen to enhance the traditional offerings: coffee, cream, Ceylon tea, brown and white sugar, as well as finger food to relieve the hunger pangs and make the long wait till lunch more acceptable. You have not joined the people who left the room because it is your turn to present right after the coffee break. You are standing next to the computer. Your slides are ready. And you are waiting for people to return. Your friend walks in, slowly, holding a cup filled nearly to the brim with piping hot coffee. She even thought of taking two sticks of your favorite raw sugar, and three small sealed cups of half and half. “Here, John. Take this. It will perk you up.” You smile, express your gratitude, move your hand towards the cup, and… STOP AND THINK.

Coffee or tea: Prior to a presentation, your body under stress naturally produces adrenaline to help you out by releasing glucose directly into the blood stream and by making you keenly aware of what is happening in and around you. That is why you become so self-conscious about your arms, your feet, your hands, and sometimes wonder where to put them!   Coffee and tea contain caffeine, which signals your kidneys to release even more adrenaline. Drinking coffee or tea  is not wise. But how about milk?

Milk: The milk protein thickens natural mucus, such as saliva. Your anxiety may overproduce saliva which, combined with milk, thickens. As a result, your vocal chords feel as though something is getting in their way. They trigger a throat clearing reflex while you are presenting. And the sound-trapping lapel microphone you are wearing takes great pleasure in amplifying that unromantic sound to nauseating levels over the room speakers.


OK. So coffee is out. You are about to present. The glass in front of you is empty. You are a bit nervous and you think that drinking might water down that anxiety of yours. The stainless steel pitcher of icy water glistening on the small table by the lectern looks so refreshing. Condensation sends rivulets of crystalline water down its slippery sides.  Your hand moves towards the pitcher, and… STOP AND THINK.

Iced Water: Bad for your vocal chords. You need to warm them prior to a talk by speaking, not by drinking icy water. Drinking warm water is better for you.

The next day. You are also to present on behalf of your manager who missed his flight. His talk is right after lunch. The morning drags on but lunch finally arrives, and you are famished. You look at the buffet set out for the conference participants, and you see an irresistible spaghetti Bolognese dish between the roasted spuds with braised pork and the broccoli/cauliflower/mushroom/sweet peas mix. You take the spaghetti serving spoon and lift it as carefully as a crane would lift its cargo prior to depositing it on your plate...  STOP AND THINK.

Spaghetti: The reason why the best restaurants offer a special towel for people who eat spaghetti is because the probability of decorating your white Armani blouse or shirt with red tomato sauce is fairly high. To wash the stain away only contributes to spread it or, given enough water, to give you that wet T-shirt look. All this, right before your presentation, of course, with no time to change clothes. To prevent the audience from seeing the red stain, you will try to hide it in a number of creative ways while speaking.  For example, you may face the wall standing sideways, or turn your back to the audience, thus reducing eye contact with the audience. You could also use your free hand  to hold some document in front of you during the whole talk instead of using it to punctuate your speech with gestures.

You return the spaghetti serving spoon to the dish and instead pile up less dangerous food on your plate. After all, you are famished. Yet, somehow, you eat faster than usual, probably because of the stress and the need to return to the conference room before others... STOP AND THINK,

Eating fast: Eating fast creates a number of conditions, none of them helpful to the presenter, namely gas, reflux, and bloating. Your belt, which until then kept your garment comfortably in place, turns into a vice that compresses your diaphragm and affects the quality of your voice. Do not forget the stomach air and food gulps ascending your esophagus tube in total disregard of the law of gravity, and the intestinal borborygmi constantly calling themselves to your attention. They both create discontinuities in your speech and generate audience-repelling noises greatly amplified by your lapel mike.  


Food for thought: 


food can adversely affect how well you present.

By Jean-Luc Lebrun




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Trap 3 - You must be joking - NOT

11/30/2014

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PictureFlickr; Author:Timothy K. Hamilton
The second trap revealed that a question may not be a great audience warm up! How about a joke, then? “Start with a joke”, “make them like you by making them laugh”, the pundits say. 

And out they go, on a limb as always, out go the serious presenters who end up being the only ones chortling at their own jokes. The day before the event (it is easier to remember), they rush to the web for recycled jokes, or they try out the latest joke heard in a bar or at the canteen. Jokes often have sexual, religious, or racial connotations. Upon hearing these, many instantly move from a neutral attitude to one of dislike. Some may even get up and leave. I witnessed such disastrous joke-telling at an international gathering of scientists.
Some stay away from risky jokes and instead try self-deprecating jokes; after all, it’s ok to laugh at yourself, is it not?  “Good afternoon, ladies and gentlemen, or it might have been… had you been able to skip my talk and run to the beautiful beach in front of this hotel.” or ” I’m delighted to be the one who has been designated to help you sleep after today’s copious lunch. So I’ll do my best to make this talk as boring as I possibly can. Could we have the lights down now, please? Thank you very much.” The audience did not come to attend your talk expecting to be bored! Your self-deprecating humor à la John Cleese will be translated by the audience as follows: “His slides are boring. He has not even bothered to rehearse his talk at all. He really doesn’t enjoy presenting to us, but he’s doing it because he has to.”  
Last but not least, Starting a talk with a joke sets the tone for the presentation. People will expect more of the same. But then again, you will not deliver on the promises set from your entertaining start; after all, yours is a scientific presentation! 
In short, avoid jokes altogether at the start of your talk, even cartoons that may be funny. A play on word requires a good understanding of English. Idiomatic expressions, or culture specific jokes are beyond the level of comprehension of scientists with English as a second language or from different cultural backgrounds. 


To conclude, If you want the audience to relax at the very start of your talk, do what works 100% of the time: Face the audience, keep silent, and SMILE .




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Trap 2 - Cold, audiences do not answer questions

11/24/2014

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PictureSource Flickr. Author Jestqit
Do you have someone work the audience before your appearance on stage, as is the case for famous singers preceded by less known groups getting the audience into shape? Some university dean, or Nobel Prize winner celebrating your multiple journal citations, your incredible academic record, your long list of patents? If not, your audience is still cold when you appear behind the lectern. And this is why what the pundits recommend does not work: “Start with a question”, “Interact with the audience”, they say. And out on a limb they go, the misfortunate presenters for whom good advice but poor timing and unreasonable expectation garner nothing but the awkward silence of a reluctant audience.

Sometimes, the question is wrong. I recall the young scientist whose work featured the discovery of a gene associated with breast cancer. After introducing himself at the beginning of his talk, he probed the audience with this memorable question: “Has anyone had a family member die of breast cancer?”
Naturally, the long silence that followed was not an indication that the audience was made of healthy individuals whose parents were healthy and grandparents were still in their prime. The presenter must have felt like someone listening to the SETI space probe waiting for a signal betraying intelligent life in the universe, for there seemed to be no life at all in this audience. The question was too personal and too risky: imagine someone had replied: “Yes. My mother died of breast cancer last week.” What would the presenter have responded?

But most of all, the timing is wrong. At the beginning of a talk, the audience does not readily open up to someone they do not know. It adopts a wait-and-see attitude. The positively-charged presenter must create a low resistance channel to reach the neutral audience. And I know no better way to do that than by smiling and welcoming the audience. The presenter must also establish a potential difference (voltage) between him/her and the audience – for example, by creating a curiosity gap that the audience eagerly wants filled. The question is a good way to build that curiosity gap, particularly an intriguing, provocative question or statement like Friedman’s assertion that “the world is flat”. But that question must be rhetorical.

There is no need to force the audience into action at the beginning of your scientific talk. An audience that has had time to be interested in both the presenter and his/her topic is easier to interact with and engage.

By Jean-Luc Lebrun

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    After running a research center for Apple, I now write books on scientific writing and scientific presentations. I also conduct seminars to help scientists in life science and engineering science effectively promote their work. The way one promotes one's scientific achievements today, has evolved much since I started teaching 15 years ago. 

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