Make sure you're proper and kind to your date and group mates and they will respect you for your kindness and the whole night will be just more pleasant. D is for dancing. The whole point of Prom is to boogie down. Let go for just this one night and dance the night away John Travolta style. If the idiot factor really bothers you, just laugh at yourself and it will make the whole situation more comfortable for everyone.
E is for elegance.
Prom is a black-tie affair, so you'll want to look and feel as elegant as possible. Although the clothes and hair may do it for you, don't forget that elegance is a lifestyle. Therefore be charismatic and mature and you'll have a most elegant evening. F is for food. Ladies, ditch the dainty salads and eat something healthy but hearty.