Your eyes are the most important way to keep people's attention. So make sure you know your opening well. In writing, remember that most of the time, readers would read only the first sentence of the paragraph. The most effective way for people to learn is through repetition and illustration. Make your point, give a descriptive example, and then remake the point as creatively as possible.
Retention is the key to a powerful speech.
If you cannot summarize your message in 60 seconds, you may not understand it well enough to communicate it in more detail. In telemarketing, make sure to make it short but direct to the point. Up to ninety percent of communication is visual. When you speak, your listeners are watching, to be sure that your facial and body clues match what you are saying. Make it a habit to greet some of the audience as they arrive and chat with them.