Spread the cards out into a circle. Someone draws a card from the circle. The next person then draws a card from the circle.
If the two cards have the same suit then both people have to drink for the amount of seconds of both cards' values. For example if a 5 and 9 of hearts were drawn then they would drink for 14 seconds. Face cards count as 10.
The next person then draws a card. If it is the same suit has the first two people then all three must drink for the combined time. When a card is drawn that doesn't match suit the players can discard.
The last player to draw doesn't discard however. He compares his card with the next player. If a player breaks the circle when drawing a card he must finish his drink.