Replying to Drinking games you and your buddies have made

The snow is coming. It's about time to hunker down at night with friends, time to kill, and some alcohol. We made a game called "Can you drink?" there are a number of halfgals floating around and if you happen to have it in your hand you can go up to people, look them in the eye and ask them "can you drink?" and you pass the bottle off to them as they take a swig. But, if they say "can you drink?" before you do, you are still stuck with the bottle and have to take another pull. What are some other games to entertain the night? skiing ones would be cool too