But stage reality is actually a heightened form of what we normally experience as reality. Even the most subtle film performance has a dash of theatricality thrown in. At the humorous end of the spectrum is Larry Winget, CSP, who tells his audiences about shopping with his wife and finding a display of small plungers. When you are communicating with a large audience, a lot of electricity is flying around. Use that electricity.
Actors know that they have to grab the audience immediately.
They do this by starting at the top of the scene-their energy level must be up there right from the beginning. This doesn't mean that you should open your speech by screaming or by jumping up and down. If they're low key, don't come out too wild or they'll be turned off. Alan Ovson opens up with a story. I have seen speakers take half an hour to warm up.