He's graduated, in a sense. He used to be able to earn a toy simply by verbalizing in any way. That's not good enough anymore. Now he has to imitate. See below.
(While J.J. may seem to be somewhat bump-on-a-log-ish in these videos, it's because without the benefit of speech therapy, he doesn't understand the payoff of playing along. Also the poor guy is dealing with a little bit of a bug so is not his usually jolly self.)
