To help encourage prompt pace of play, the Rules suggest making a stroke in no more than 40 seconds, and even quicker than that for most shots. In making a stroke, it must be free flowing, not anchored, and the ball must be struck with the head of the club. You may use a distance-measuring device to measure distance only, but it must not measure slope or other conditions that may assist you.
During a round, you must not ask for or give advice to anyone (except for your partner or caddie). There are certain limits on the help you may get from your caddie or partner, and on how you may use equipment to assist you during a round.