[Rob1968]

BE prepared:

"The will to prepare to win, is much more important than the will to win." Bob Knight
This applies to any performance, whether one speaks of the opponents in a contest, or the officials.
Look the part, act the part, be the part.
As officials, we are observors, and communicators. When you communicate, really communicate - avoid going through the motions, either too casually, or too mechanically.
Everyone who observes one's work as an official, will judge that performance mostly by his/her communication - with partners, players, coaches, table crew, and the crowd.
One must develop the basic skills of our craft, and then become an official - not just act as an official. Admit that your preparation is done when the contest starts.
Be "in the moment." Relax, and be what/who you are, now. You were what you were, in your previous performance; you will be something different in your next performance. This performance is your reward for your past preparation, and the foundation for your future.
Be the partner that makes your partners' performance easy and enjoyable. From my pre-game: " It is my intention that you have the best game of your season, so far, tonight. The best way for me to do that, is to, in a properly assertive manner, take care of my resposibilities so you can relax and take care of yours. And remember, "You can say almost anything you think you need to say, to a player or to a coach, if you do it with a smile!"