I recently stumbled across an entry on Richard Branson’s blog where he briefly offers advice to some people who have asked him how does he always appear so confident when speaking in public.
He offers some very sound advice. Forget that you are speaking to many people! Instead remind yourself that this is a conversation between you and a series of individuals. Very few people get nervous speaking to another person one on one. Set aside the thoughts that are telling you that the audience is there as a whole group. They are in the room listening to you as a collection of individuals. If you can picture yourself having a conversation with them individually you will remove the pressure that is associated with speaking to the audience as one large group.
Take the pressure off and have a conversation with each member of your audience.