How to hit a forehand:
Get near the ball and face it as if going to shake hands.
Meet it in front and from below in an open stance (facing the net), stroke it gently and lift it over the net.
Loading on the right foot, let the body turn to the left (for a right-hander). Of course, when your game matures, you’ll be hitting harder and harder. But this is the start in the modern game.
Brush it up and across with a windshield-wiper topspin stroke, finishing on the other side of the body, preferably over the left shoulder and pointing back. Let the back of your right hand touch your cheek.
Two-handed backhands opposite, mirror wise, using the left hand (as you did with your right one on the forehand stroke).
Oscar Wegner – tennisiseasy.com