Maybe you are new at talking to a large group of people and you are a shy person to begin with. Don’t feel bad about it! Feeling nervous is a typical thing many people experience. There are little ways to resolve this problem;
holding small objects in your hand but don’t let the crowd notice.
Imagining the audience is not there watching you or your friends are the audience which is very comforting.
Drying Up: look at your note, repeat what you have just said
SMILE BIG! HAVE FUN! IT’S TIME TO SHOW THEM HOW GOOD YOU REALLY ARE! Don't be scared! Present that presentation with all you got. You have nothing to lose, you just got to stay confident and don’t let them catch you off guard with any question! Be prepared!