Beavis or Butthead

I'm not sure, but I think Ollie has become Beavis. The other night after feeding him, he stared at me for what seemed like hours. Then while I was watching TV. "huh, huh, huh", "huh, huh, huh". I swear it was his first laugh! We haven't been able to get him to repeat it yet. But he his cooing and smiling without the aid of gas.