Each round, everyone is given told to draw a particular thing (a "task"), and has one minute to do so.
After that, all players see one player's drawing and privately guesses what they think that player's task was.
Players' guesses are then mixed in with the original task, and players vote on which they think is the original task, for each picture.
Score 1 point for everyone who chose your guess, and for everyone who chose the original task on your drawing.
The game continues until (some point not specified in the original rules).