To help encourage prompt pace of play, the Rules now 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). You are also allowed to listen to music but should be considerate of other players on the course.