My kitten, Caspian, here about 6 and a half weeks old, plays for a while and then notices the camera. He has this cute thing he does where he moves his mouth but no sound comes out. :) He can meow if he wants to, trust me, but for some reason he doesn't always feel like it. At the end I think he tried to attack the camera....
By the way, my mom is the one who shot the video, so it's her voice you hear. :)