Soccer, shooting
Attack the ball with your forehead, eyes open, neck firm, power from your hips. Use a soft ball.
Beta: we're less sure how well one camera can judge this move, so treat the scores as a rough guide.
Phone at hip height, about 3 metres away, filming you from the side.
Your head, arms and hips need to be in the picture. The coach will remind you if it can't see you.
Arch back more
You didn't load up. Arch back from your hips before you attack the ball.
Snap forward
You didn't attack the ball. Snap your upper body forward and hit it with your forehead.