[ A moment more of fiddling gets him his desired result, and then he flashes a grin up. ]

Just a little fun.

[ He turns so they're face to face, and makes a bit of space. He puts an arm between them, bent, his elbow set on an imaginary table. It won't matter if there's no actual table; it would be out of frame at this distance, anyway. ]

Have you ever played the arm strength game? When we see who can push the other's arm back flat.

Usually for a wager, but this will be just for the picture.