What to wear as Carrie: A long blond wig, a long light-pink dress, a tiara, and a pink corsage on your wrist. Carry a bouquet of flowers, and then drench yourself in fake blood.
How to act as Carrie: Nervous and awkward at first and then ragingly angry. Delight your friends further by staring at things intently and saying, "Just watch, it'll move. Keep watching. I swear it's gonna move."