You can see a light flicker across his face hmmmm.... can I climb that? and what happens if I bang my head into that. or hmmmm what if I bang it even harder into that thing. and again? And what is that on the floor? And in a flash he is popping whatever it was is in his mouth with his chubby fingers.
In the photo above I believe he is thinking, can I climb onto this rickety side table?
and he will try.