When experts present, they look calm and authoritative. There are ways of achieving this with your body language, whenever you stand to speak.
Professional speaker Douglas Kruger helps to create experts. He is a 5x winner of his national championships for Public Speaking, as well as a Certified Speaking Professional through the NSA, and a 'Hall of Fame' speaker with PSA.
He is also the author of six business books with Penguin.
See him in action, or book him as a motivational speaker, via www.douglaskruger.com.