How much research should they do before writing their speech? How much should they practice the speech before the night of the event?
I think there will always be a little nervousness in the beginning, but my best advice is to simply be yourself. Don't be afraid to make a mistake. Show your human side; people in the audience will connect to that. Engage the audience members if possible. Add a little humor if the topic is one that allows it. Good luck. Just go out there and be you!!