Repetition is key.

Hey Buddy! Hey Buddy! Hey Buddy! Hey Buddy!

Who's my big boy? Who's my big boy? Who's my big boy?

Can I have a smile? Can you smile for Mama? Can I have a smile?

Are you mama's boy? Yes you are, you're mama's boy. There's my big boy.

Look at you Buddy! Look at you. Just look at you!
Look how strong you are.

Hey handsome guy. You are sooooo handsome.
Can you pleeeeease smile for Mama?

(Really high-pitched voice)
Ahhhh yes! There it is. There's my smile!

There's a good smile.

THANK YOU! Mama loves you! Mama LOVES you!
SUCH a handsome boy.