You hit the ball over the net, like, you actually need hit it over the net to beat your enemy. To do so, hold the racket in a way that theres a v shape between your thumb and index finger, in a hammer like way. Then after all that, your still not finished. You need to stand in a way that you are side ways, if the ball is left of you, turn 90 degrees clockwise, if the ball is right of you, then move 90 degrees in a anti clockwise.