Each official shares an equal responsibility for rules interpretation. A quick good review is the Summary of Penalties in the back of the Rule Book. 51. Avoid, if possible, warming up on the field prior to the game. Use the dressing room. Try to have a good mental attitude in all games.
All games are important.
Do not discuss controversial calls with anyone after a game unless it is with the referee and a designated press representative. A majority opinion prevails in a crew conference. Referee's vote counts as one vote only. Try to keep area near ball free of players on a measurement for a first down. This is necessary for spectators and the press visibility.