Making a stroke on the putting green - Help from Any Person Other than Caddie with Line of Play or Other Directional Information
You must not get help with your line of play or other directional information from any person other than your caddie, except as follows:
  • That person may provide help by giving you public information in relation to an object (such as pointing out a tree that shows the centre line for a blind fairway).
  • Other than when your ball is on the putting green, that person may stand in a position for you to play towards, but must move away before you make your stroke.
But this Rule does not prohibit any person from standing close to the hole to attend the flagstick. Penalty for Breach of Rule 10.2b: General Penalty.