Nearly everyone experiences, to some degree, a rise in energy before they speak in front of groups.
This energy has a bad rap, and we call it all kinds of nasty names: nerves, anxiety, panic, fear.
Let's call it something else. Let's call it excitement.
When exposed to powerful stimuli, the human body releases chemicals that cause rapid heartbeat, sweating, dry mouth, shaking, butterflies, etc. Nerves before a talk, or the thrill of a surprise party? Your body doesn't know the difference!
So, change your mind and your body will listen. Tell yourself that the nauseating butterflies are there to help you. Say, "Yes, I'm feeling a rise in energy; that's precisely what I should feel...and I know how to use that energy to my advantage."
Be prepared. Be rehearsed. Be breathing.
Yes, breathing really does help.