Transformers, how did they do that

BomTeks post about webcams and the like to see his little one, while he was in Iraq made me think of the beginning of Transformers after they land at the base.

Something about his little girl farting, then the little baby girl opens her eyes really wide, while the mom says no, she is a lady.

So how do they get the babies to emote like that.

Declan

Is it not just something happening behind the camera to make the baby open it’s eyes like that?

Point a camera at a baby long enough, eventually it’ll do something adorable.

CGI.
Come on, it’s Transformers. There’s nothing that isn’t CGI in that.