Cricket, bowling
Spin the ball out of the back of your hand with your wrist and third finger.
Beta: we're less sure how well one camera can judge this move, so treat the scores as a rough guide.
Phone side-on to your delivery stride, about 5 metres away, so it sees you from gather to follow-through. Shadow bowl: no ball needed.
Your whole body, head to feet, needs to be in the picture. The coach will remind you if it can't see you.
Keep your arm straight
Your bowling arm bent and straightened. Keep it straight through the delivery so your action is legal.
High arm
Your arm came round low. Bowl with a high arm, brushing past your ear.
Follow through
You stopped after releasing. Let your body follow through, bowling arm sweeping across.