My clients often ask me what they should think about when they think about preparing a persuasive presentation. Should they write the script first? Create the images? Write an outline? Select a few key phrases and figures of speech? All of these are important elements of a persuasive presentation. But I usually tell them to think back 2,000 years to a Roman orator named Cicero.
Cicero was the best orator in the Roman forum. He could move audiences to tears or — more importantly — to action. He wrote down five rules for creating persuasive presentations in the first century BCE. Over time, these have become known as the five canons of rhetoric. They’re as relevant today as they were in ancient Rome.
For Cicero, the five canons are: 1) Invention; 2) Arrangement; 3) Style; 4) Memory; 5) Delivery. Let’s look briefly at each one.
Invention — Aristotle said that rhetoric is the ability to “see the available means of persuasion” in a given situation. Invention is about seeing all the ways you might persuade an audience and picking the best ones. First, you need to decide what you want the audience to do. You may simply want them to agree with you. Or take some specified action. Or buy your product. If your audience largely agrees with your message, you may select certain persuasive tactics. If your audience is largely hostile to your message, you’ll probably need other tactics. In today’s world, this is often known as creating the message strategy.
Arrangement — You’ve created your strategy, now you need to identify the elements of your argument and arrange them, in the best possible order. Let’s say you have three key points to make: A, B, and C. Your recognize that A is your strongest point, B is the second strongest, and C is the weakest. Knowing what you know about audiences, which order would you put them in? People often put them in descending order. But you’re typically better off putting them in A –> C –> B order. Why? Because audiences remember the beginning and end of your speech (primacy and latency) and forget the middle. You might as well put you weakest point in the middle — they’re going to forget it anyway. You also need to consider ethos, logos, and pathos. How you use these and when you use them depends on what you’re trying to achieve. You can learn more here.
Style — you’ve outlined your thoughts, now how do you want to sound? Do you want to sound like a college professor? A preacher? A business leader? A rabble-rousing politician? What does the audience expect? Which persona will be the most persuasive? This is about positioning yourself — the audience will ask, who is this person and why should I trust her? Once you decide the persona, you need to select the vocabulary. As you know, college professors use different words than rabble-rousing politicians. What words best fit your message strategy?
Memory — you probably have a big storehouse of knowledge. How easily can you access it? In my prepared remarks, I usually memorize certain keywords that trigger a chain of thoughts. Once I’m on the chain, it’s easy to follow. I appear to be in command of my material, which enhances my credibility. Memory is also important in the Q & A session. If you can answer questions easily, fluidly, and clearly, your credibility will soar. The trick is to know your way around the storehouse. The Greeks invented the memory palace to help orators remember and retrieve relevant information.
Delivery — You’ve now got it all organized. Can you deliver the goods when the time comes? Where style focuses mainly on what is said, delivery focuses more on how you say it. Do you want to speak quickly or slowly? Do you want to stand or sit? Podium or not? How will you dress? How do you want your voice to sound? How will you modulate your voice — or your body language — to emphasize key points? The goal is twofold: 1) to fit in with your audience (good decorum); 2) to appear comfortable and confident as you speak.
Using the five canons is like using a checklist. If you can fulfill each canon, you’re likely to have a very persuasive presentation indeed.
I love it when the Harvard Business Review agrees with me. A recent HBR blog post by Scott Edinger focuses on, “Three Elements of Great Communication, According to Aristotle“. The three are: ethos, logos, and pathos.
Ethos answers the questions: Are you credible? Why should I trust your recommendations? Logos is the logic of your argument. Is it factual? Do you have the evidence to back it up? (Interestingly, the more ethos you have,the less evidence you need to back up your logos. People will trust that you’re credible). Pathos is your ability to connect emotionally with your audience. If you have high credibility and impeccable logic, your audience might conclude that you could take advantage of them. Pathos reassures them that you won’t — your audience knows that you’re a good citizen.
When I teach people the arts of public speaking, I generally recommend that they start by establishing their credibility (ethos). The trick is to do this without overdoing it. If you come across as a braggart, you reduce your credibility rather than burnishing it. A good tip to remember is to use the word, “we” rather than “I”. “We” implies teamwork; “I” implies an egocentric psychopath.
After establishing your credibility, you proceed to the logic (logos) of your argument. What is it that you’re recommending and why do you think it’s a good solution for the audience’s needs? It’s often a good idea to start by defining the audience’s needs. Then you can fit the recommendation to the need. Keep it simple and use stories. Nobody remembers abstract logic and difficult technical concepts. They do remember stories.
Think about pathos both before the speech and in the conclusion. Ideally, you can meet the audience before your speech, ask insightful questions, and make personal connections. The more you can talk to members of the audience before the speech, the better off you’ll be. Look for anecdotes that you can use in your speech — that also builds your credibility. If nothing else, spend the last few minutes before your speech shaking hands with audience members and thanking them for coming to your speech. At the end of your speech, you can return to similar themes and express your appreciation. It’s also appropriate (usually) to point out how your recommendation will affect members of the audience personally. For instance, “We believe that our solution will help your company be more efficient. It will also help you build your career.”
Those of you who have followed my website for a while may remember my videos on ethos, logos, and pathos. I made them when I worked at Lawson Software and was teaching communication skills internally. Again, I’d like to thank Lawson for allowing me to use these videos on this website as I build my own practice.
By the way, all these suggestions apply to deliberative speeches. You present a logical argument and ask your audience to deliberate on it. On the other hand, you can also give a demonstrative speech where you throw the logic out altogether. They’re often called barn burners or stem winders. You can learn more here.
How much can you say in a 30 minute presentation? How much should you say? Should you aim for more content or less? What’s the difference between a TV newscast and a newspaper? Your persuasive presentation is more like a newscast. It summarizes the key issues and creates a desire to learn more. You speak at about 120 words per minute. That means about 3600 words in a 30 minute presentation. That’s long enough to use your communication skills to summarize the headlines but not enough to give every last detail. Don’t talk faster to fit more in. You need to shrink the content to fit the space available. Learn how in this video.
Your first task in delivering a persuasive presentation is to establish your credibility and show the audience that they can trust you. The Greeks called it “ethos” — it has to do with your character and your degree of fit with the audience. The audience will ask several questions of you. Does she respect us? Does she use our time wisely? Does she know what she’s talking about? Is she an egghead or does she have the practical wisdom to recommend a practical course of action? Does she share our values? These are all subliminal questions but your actions during the first five minutes of a speaking presentation will answer most of them. Find out more in the video.
The Greeks loved things that came in threes. That’s certainly true with the “perfect structure” they designed for the persuasive presentation. You start with “ethos” — using your character and the art of decorum to establish credibility and a foundation of trust. Then you progress to “logos”, stating the logic of your argument. You conclude by touching on the audience’s emotions, what the Greeks called “pathos”. Ethos, logos, pathos — watch the video to see how it all fits together.