... listening to you play with a toy that sings "Old MacDonald" and hearing you say, "Wa-oo, wa-oo, wa-oo" instead of "E-I-E-I-O."
... watching you figure out how to stack rings on your ring stacker when no one has ever shown you how to do this.
... the fact that you can play independently and entertain yourself for long periods at a time with little or no direction from me.
... listening to you giggle as you read your books to yourself. I always wonder just what you are laughing at.