He has a big head. Not in a bad way. It's nice.

His head, hands and feet are slightly too big for the rest of him. That's one of the first things you notice when you see him in the flesh.

If I ever meet him, I'll have to ask if I can feel all his skull bones.

That's just reminding me of Dr Mortimer in The Hound of the Baskervilles, asking Holmes if he could possibly have first dibs on his skull when it becomes available! :D