There is a simple way.THE GOLDEN RULE™ is a putting training aid, patented in USA & RSA & Europe pending. Its Purpose - To practise the #1 fundamental rule of putting: TO KEEP THE HEAD STILL. THE GOLDEN RULE™ is a putting training aid device that clips onto a players cap. The little red dot on the floor mimics the head movement.The putting training aid device easily clips-on to a golfer’s cap with its built-in safety tilt switch with an indicator light that switches on automatically when a player looks down because it prevents the dot shining in others’ eyes when the head is lifted while enabling players to assess their head movement by physically witnessing it first hand!.The putting training aid with its swivel feature allows the player to strategically set or point the dot over the golf ball or training circle with the device thereby assisting players to keep their head still during play.The red dot visibly shows head movement before, during, and after the putting stroke.