Director, please! Caddy, please!
You'd be surprised how much directors and caddies appreciate that little, magic word "please." When you call them, please try to remember to say "please." Also try to be loud and clear, but stay calm - even when your opponents revoke and you just can't wait for that penalty trick! Oh, and remember to raise your hand after you call for the director. Directors don't like wandering around the room looking lost!