Try to avoid an unnecessary expenditure of nerve force by treating your adversary—with all due respect to him—as a nonentity. Whatever brilliant achievements he may accomplish, go on quietly playing your own game. There is always the probability that sooner or later he will make enough mistakes to bring him back to you. It is the steadier player who plays his own game from the first tee to the last green, and who never allows himself to be upset by anything that happens, who wins the match.
Never hurry when playing a match or a medal round, or indeed any kind of golf. Haste will affect your nerves and spoil your play. The record for playing a round in the shortest possible space of time is not worth the holding. Take time enough, but don't be unnecessarily slow.
If from any cause whatever you are playing a very slow game, don't miss an opportunity of inviting the couple behind you to pass. It will please them, and will be far more comfortable for you. But if your match is behind a slow one, do not be offensive in pressing upon the match in front by making rude remarks and occasionally playing when they are within range. You do not know what troubles they are enduring. Remember the story of the old player, who, on a ball being driven past him by the couple behind, sent his caddie with his card to the offender, and with it the message, "Mr. Blank presents his compliments, and begs to say that though he may be playing slowly he can play a devil of a lot more slowly if he likes!"
Be careful that you always stand on the proper side of the tee when your opponent is preparing to drive. At this most anxious moment for your friend do not be practising your own swing or move about or talk. You would be intensely annoyed with him if he did these things when you were driving. If he lost the match through a foozled drive, he would be justified in saying that you did not play the game.
In playing through the green, avoid as far as possible getting in your opponent's line of sight when he is making his stroke. Also do not stand so near to him that he can see you through the corner of his eye when he is taking his swing.