Why do we start with animal sounds?

I laugh at the way I act when I have company around Blue I behave exactly the way that I used to make fun of other parents for. When someone is watching her, I feel this uncontrollable need to show off what Blue can do. I'm a grown adult and there I am on hands and knees saying "Blue, what does the sheep say?" ( as if somehow me acting like a sheep will get her to say it more clearly) =) She inevitably tosses me a smirk and toddles away. She does it perfectly in private and absolute silence in public. She is no one's puppet. What we do for peer validation!