I don't know quite how to describe Emmett's expression in this picture:
He's goofing a bit (the crooked smile), but aso looks a bit triumphant or even cocky. One thing I've been noticing over the last few months is how self-relational he has become. He does things (posing, playing on his own, goofing) that seem to me evidence that he sees himself as doing something. That is, he's playing for an audience, and the audience is himself. I know we're a bit shy of the classic mirror stage, but I swear he's developing a self-image.
