Consider creating curiosity and attention by starting your presentation with incongruous statements such as:"Did you know that lie detectors... lie?”“Want to improve your reactions, sharpen your memory, and develop a more agile mind? Go out and buy a video game.”Right from the start, present the participants with data, ideas, or stories that contain contradictions or conflicts. This will make them surprised, amazed, or shocked, and definitely attentive.
Avoid any form of demeaning yourself in a presentation unless it’s good humored self-deprecation. Never make comments like, “I‘m not very good at…” or “I suppose I should have known the answer to that.” Demeaning yourself destroys your credibility, weakens your presentation, and is uncomfortable for your audience.
An example of a strong ending: “Before we end, I want you to think about this. <pause> The difference between being highly successful in this business and just getting by <pause> is a big dream and hard work. Highly successful people are not more intelligent, more fortunate, or have more connections. They simply have a clear image of themselves succeeding and work harder than most. <pause> The hard work is the easy part—we can all do that. The question is...<pause> how big is your dream “