Do's

DO pay attention to the game at all times no matter how far away the ball is

DO be in position when the game is scheduled to begin. Games in San Francisco that are delayed are usually late because everyone is waiting for the officials to turn up, and this can have a knock-on effect on later games adding almost an hour on to the day

Don'ts

DON'T become abusive with protesting players, that can only inflame an already charged situation. Remain calm and explain why you made your decision in a cordial manner

DON'T allow your mind to be changed by protesting players

DON'T try to change the outcome of a game to suit your own club by deliberately making incorrect calls. It is unsportsmanlike and can only backfire on you when other clubs have to provide officials for your own games.

Do's

DO stand in the correct position beside the goals

DO change your position if you need to get a better view of a ball coming in

DO keep an eye out for forwards in the square and interfering with play before the ball arrives there (square ball)

DO give a signal for every ball that crosses the end line (be it a point, goal, wide, square ball, or 45/65) no matter how obvious it looks to you. It may not be obvious to people on the sideline or in the stand

DO use the correct flags: white for a point, green for a goal

Don'ts

DON'T stand behind the goals gossiping with your partner

DON'T guess; if in doubt, consult your partner

DON'T give a signal unless the whole ball has crossed over the line

Do's

DO follow the play up and down the line to give yourself the best possible view

DO explain the rules concerning sideline balls to any protesting players who may not be familiar with them

Don'ts

DON'T be afraid to insist that people standing on the sideline should stand back and give you an unobstructed view

DON'T raise the flag unless the whole ball is over the line