What to wear: Channel Adam Sandler's character with an open denim shirt and a red t-shirt, or rock a blond wig with a cardigan or cable-knit sweater and a skirt to dress as Chris Farley's and David Spade's characters.
How to act: Use a Valley Girl accent, and complain with your girlfriends. If anyone tries to take your food, yell, "Lay off me, I'm starving!"