Yesterday I had a fascinating conversation with a conductor who spent the summer working with an orchestra in Salzburg. She spoke of the challenge of communicating with the musicians in German, when she barely speaks the language.
The conductor was forced to say less and rely even more on nonverbal communication and say only what was absolutely necessary. She realized that she was able to get across the same information just as effectively - and much more efficiently - than when she was speaking in English.
From the Green Room: Next time you prepare a presentation, imagine that you will be speaking to a group of people for whom English is a second language. Eliminate filler words. Speak as simply and clearly as possible. Focus on the essence of what you are trying to communicate. Then try practicing your speech focusing solely on nonverbal communication (gestures, facial expressions, movement, etc).
You will see that by using fewer words, you will actually say much more.