Tell your friends to invite their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends, and their friends their friends. Hell, even invite random people you just met.