Umpire Signals

a)  signals must be clear and held up long enough to ensure that all players and the other umpire are aware of decisions ​

b)  only the official signals must be used ​

c)  it is preferable to be stationary when giving a signal ​

d)  directional signals must not be made across the body ​

e)  it is bad practice to look away from the players when a signal or decision is made; further offences might be missed, concentration can be lost, or this can indicate a lack of confidence.