Keep your games moving. If an official rules a travel, the new official who is responsible for the line, needs to hustle to get the ball back into play.
Keep your games moving after ruling on traveling, palming, freedom of movement on the perimeter, etc.
Have a cadence to the table. When reporting a foul, get your reports up near your eyebrows.
On free throws know your shooter and how many they have.
Before administering a time out, that occurs after a shooting foul, know your shooter and how many free throws they have.
When the ball is dead be alive.