Buy a dozen cookies from the bake sale and give them to a total stranger.
Do your best impersonation of someone you dislike either in public or to a friend/acquaintance.
Sit on the laps of at least 3 different people.
Kiss the first blond(e) you see - your reflection does not count, it must be another person.
Start a group conga.
Go ice skating in only your undergarments for a minimum of ten minutes.