When first learning how to play volleyball, it's important to understand how to score points.
To score a point in volleyball, a team must win a rally. A rally is begun by a server serving the ball into play. The ball is served over the net to the opposing team.
The opponent then gets a maximum of three hits to return the ball back over the net.
A team wins a rally if
there opponent isn't able to successfully return the ball
a player hits the ball down into their opponents court
a player hits the ball out of bounds
the team hits the ball off an opposing player
a player commits a fault when playing the ball