This game is based off of something that my friends and I do (because we're nerds like that.) Basically, you give some clues about which character you are. If they can't figure it out from what you've given them, they ask questions (Are you an assassin? What colour is your hair? etc.) until they guess it correctly. Then, it's their turn. It's rather like Name That Anime! (Only not.)
Since I brought it up, I'll begin:
"I am a male. I am a member of a sports team. I am still in school."
(That's really not a lot, I know, but it's a start. I can't go about giving you everything!)