Okay, so if you're not old enough to drink or just don't drink alcohol, then water would be fine.
First, go to the main page with "Newest" as your selected filter.
The premise of the game is to take a drink every time you see art that looks like it was made by a 12 year old.
If you're really daring, you take a drink every time you see a recolor, sonic, or furry art.