Well, just consider they're your puppets and your entertaining them! :] I always felt nervous but I realized people actually just watch. So be confident and do what it is your doing. Also ask your friends for some encouragement
Audiences like to think about themselves so it's helpful to ask rhetorical questions of them. You should look into the eyes of an audience member, then move on to another. It gives what you're saying more credibility and, like asking questions or making people think of their own experience, interaction is key to a good speech. Good luck tomorrow!
Don't get rid of them- use them. They'll make you a jittery mess, if you let them, though, so you've got to keep control of your thoughts.
You're prepared for what you're about to go do. You've worked hard and practiced until you've got it the way you want it. Don't over-think your performance- all the practice has made it second nature to you. In fact, don't think about the performance at all. Just keep assuring yourself that you're prepared for this, that you've worked hard, and that you're gonna blow them away. Slap a 1000watt smile on your face, hold your chin up, walk out on stage and let it do what it do. Just before you go on, breathe deeply and think of this.
Calm confidence in your ability will let those butterflies bring your performance to a whole new plane. And you'll begin to appreciate the feeling that only they can give you Break a leg