Object is chosen from a member of the audience. Scene is played using that object. It may or may not be used as what it really is (eg: credit card may be used as a pocket TV…).
To improvise and justify a complete scene within the rules of the game. This game focuses on the teams abillity to create a story about the object.
Let the object tell the story in one way or another. If the story isn’t about the object, the object should be a main character, or the solution of the problem, or the ultimate goal, or Big Brother, or…