To setup up the game you first need a deck of cards, you will then find all of the 7?s in the deck and lay them in a vertical line with plenty of room on each side of the cards. You need this room to place the remaining cards next to the 7?s in numerical order. After you have done this you will pass the remaining cards out to the players until all the cards are gone.
Now the first person can lay down any card in their deck next to one of the sevens, it must be the same suit as the 7 you are placing it next to. If it is the 7 of hearts you must place a heart next to it. Now depending on what card you place, determines the drinks you will drink or the drinks you will pass out. So if you have the Six of hearts and you place it next to the seven since you made a link you get to pass out two drinks, because two cards are linked. If you place the 10 of hearts then you will drink two drinks because there is a two card gap.
It gets a little tricky when more cards are placed, but basically if you place a card and it doesn?t link then you drink what ever the gap is. If you place a card and there is a link then you get to pass out how ever many cards are linked to the line. If you place a 10 of diamonds and it goes 10, 9, 8, 7, 6, 5, 4; and then there is a gap between the 4 and the 2, then you pass out 7 drinks because 7 cards are linked.