Kiddo understands that a cup is a cylindrical object that is closed on one end, and open on the other. You put it up to your mouth to drink.
So when she found the extra garbage can (that thankfully holds no trash) in our room, that is plastic, cylindrical, closed on one end and open on the other, she knew exactly what to do. Put it up to her mouth and try to drink. Luckily, nothing came out.
