Authorization to serve
Move the hand to indicate the direction of service.
Raise the forearms front and back and twist them around the body.
Place the palm of one hand over the fingers of the other, held vertically (forming a “t”).
Show yellow card for warning.
Show red card for penalty.
Show both red/yellow together for expulsion.
Show both red/yellow separately for disqualification.
Raise both arms vertically, palms forward.
Raise the forearms vertically, hands open, palms towards the body.
Brush with the palm of one hand the fingers of the other, held vertically.
Point the fingers towards the court.