The Serve
The serve begins each rally. A player must hit the ball with his or her hand over the net to land inside the lines of the court. Players may serve underarm or overarm. A popular serve is the "jump" or "spike" serve: the player jumps and serves the ball while airborne. Each player gets only one chance to serve. The serve can touch the net and continue into the opponent's court. When the serving team loses a rally, it loses the right to serve. This is called a "side-out". The receiving team then rotates one position on the court and it is their turn to serve.