Actually, this is a game itself. I used to play it with friends growing up -- we called it "Mao." It's a card game where you are penalized for breaking the rule

Actually, this is a game itself. I used to play it with friends growing up -- we called it "Mao." It's a card game where you are penalized for breaking the rules (at least one person must know the rules in advance). You are allowed to pause the game at any time and guess what a rule is, and the players who know the rules will confirm or deny your guess. You'd be surprised at how quickly people can pick up rules like "only face cards may be played after a 7" or "if an ace is played, the next person is skipped."