You want to finish before the other team. Player 2 flips the cup until it is standing right side up.

If player 1 makes it, Player 3 drinks the cup and hands it to Player 2. Player 1 stands at one end of the table, Player 2 stands on the side, and Player 3 stands at the other end of the table (all are on the same team). All you need for this game is 6 red solo cups with your drink inside.