People tend to remember things really well if you present them in groups of three. This phenomenon can be used in public speaking to really get your message across. Think about it: the most famous quotes in the history of mankind come in three parts:
“Veni Vidi Vici” (Julius Cesar)
“Liberte, Egality et Fraternite” (the French revolution)
“life, liberty and the pursuit of happiness” (declaration of independence)
So how do you apply this successfully when preparing your dynamic PowerPoint presentation? Simply think of the main three things you want to say and group them together in your introduction. Explain them individually in the body of your presentation and group them together again in your conclusion, when you summarise your argument.
Another way to use this rule in public speaking is by saying the same thing three times. Simply rephrase yourself a little and repeat it again and again. When you really want to make a point of something, repeat it three times and you will definitely get the message across.