If a baby rolls over in the living room and no one is around to see it, does she make a sound?

Absolutely she does.

I initially intended to capture video of Teagan beginning to roll over from her back to her tummy - an exciting new development that no longer allows me to use the bathroom while she chills on the bed. The footage turned out to serve an additional purpose: preserving for posterity evidence of our social caterpillar (that's a social butterfly in the making.) Pay attention around 0:19...

...when she hears my voice and realizes that someone is indeed in the room with her. Then all of a sudden, all is right with the world. Teagan just needs to know that someone is paying attention to her. At all times. She's been known to start fussing if you should have the nerve to break eye contact with her for longer than 2 seconds. I don't want to use the word "Diva", but...