[ Oh dear. It only takes one look at Wanda for John to rush over, holding his hands up as he does. ]

Hey, hey - [ Carefully, he steps close to her - not close enough to touch or anything, but clearly here to help, a smile on his face. ]

You want your thumbs outside of your fist if you're going to throw a punch. Keep it in, and you're liable to break it. Lay it against your knuckles. Also, careful with your wrist. You want to punch with your knuckles, not with the back of your hand. If you cut your wrist down like this - [ He demonstrates, holding his hand down, wrist bent as he moves his hand forward, ] - not only are you using your shoulder and back strength instead of your arm, but you can break your wrist. For a solid punch, you want your arm straight.

[ Holding his hands towards Wanda, John looks up at her, obvious that he'd looking to show her. ]

Can I?