Things Casey can say:
mom, dad, up, down, uh-oh, dog, woof woof, outside, more, bottle, nonono, hi, night, car, diaper.

I will have to update this list as I remember more words.

Additions: all gone, quack, moo, tub, bird, done, ball

He knows where his belly button and nose are, and he tries to put his socks and shoes on by himself. He will also pick up his socks and shoes and then say outside, where he was very interested in going yesterday, when it was a thousand degrees out.