Consideration for Others
No Disturbance or Distraction
You should always show consideration for other players on the course and take care not to not disturb their play by moving, talking or making unnecessary noise.
You should also ensure that any electronic devices taken onto the course don't distract other players.
Only tee your ball up when it's your turn to play and remember not to stand close to the ball, directly behind it, or directly behind the hole, when a player is about to swing.
On the Putting Green
On the putting green, you should be careful not stand on another player’s line of putt or, when he is putting, cast a shadow over his line.
And you should remain on or close to the putting green until all other players in the group have holed out.
In stroke play, if you're acting as a marker, on the way to the next tee you should, if necessary, check the score with the player concerned and record it.
Ensure that no one is standing close by or in a position to be hit by the club, the ball or any stones, pebbles, twigs or the like when they make a stroke or practice swing.
Wait until the players in front are out of range. Players should always alert greenstaff nearby or ahead when they are about to make a stroke that might endanger them.
If your ball's heading in a direction where there is a danger of it hitting someone, shout a warning immediately.The traditional word of warning is “fore”.