Parenting differences

My wife is sitting on the floor with Sam, during "tummy time", a kind of learning activity thing that the books say we should be doing.

Meredith: Are we going to roll now? Yes! That’s a good job, such a good job! There you go Sam. Sam, do you know you’re name? It’s 'Sam' ...

Sam lies on his back, looks up at Mom and says "goo."

Meredith: OK. Now lie on your stomach. Work your legs. That’s a good Sam. You’re doing such a good job. You’re getting so big! Way to go Sam!

Sam, lying on his stomach, frantically, moves his arms and legs, but can’t go far as his belly keeps him firmly attached to earth. Sam looks at the padded play mirror and smiles.

Meredith: Good job Sam! That's you! Let’s sing a song ...

Later ...

I’m sitting on the floor with Sam during tummy time.

Me: Good boy.

Sam lies on his back and stares at my forehead. "Goo."

Me: Good job.

Sam arches his back, which I take as a cue to turn him over.

Me: Attaboy.

Sam lays his head down on the floor, looks into the padded play mirror and smiles.

Me: (Pause)

Sam looks at the padded play mirror.

Me: Well, c’mon boy. Mush!