Start with the club in your lead hand. Take your grip, then practice swinging the club and hinging, unhinging, and rehinging your wrists with minimal arm swing. Change hands and do the same thing. Then put the club in both hands. When your lead arm gets parallel to the ground on the backswing, the wrist should be hinged to form a 90-degree angle between your lead arm and the club shaft. Then swing down, hit the ball, and duplicate the 90-degree angle on the follow-through side by the time your trail arm is parallel to the ground.