discovering arms and hands

For a few days Elijah was quite fascinated with his left arm. He would stick out his straight arm forward, fist clenched and bent forward, and just stare at it for a while. Now he is into holding his hands together, preferably close to his mouth, ideally in his mouth :-) He tries to stick them both in, but a baby's mouth is a little too small to accommodate two fists, although at one point he almost succeeded in getting one fist all the way in.