(Bk Business) Carol Kinsey Goman Ph.D.-The Nonverbal Advantage_ Secrets and Science of Body Language at Work -Berrett-Koehler Publishers (2008)

Chapter 10: Selling Your Message without Saying a Word
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You Are “a Natural”
I once worked with the head of a research department who
was preparing for a major presentation. One-on-one, this man
was smart and charming and had a great sense of humor. His
body language was congruent and expressive. But he was also
an introvert. Put him on-stage in front of an audience and
he became a nonverbal disaster. He didn’t need to work on
technique so much as he needed to relax and let his natural
personality and body language speak.
You may be in a similar situation. When talking with
friends, you use your hands and face to help describe an
event or object. You smile, frown, shrug your shoulders, and
make broad sweeping gestures. Just remember that your business
audience also relies on your nonverbal communication
to understand the bigger, more inspiring picture.
Sometimes all you have to do to be truly impressive is to
get out of your own way!