What is the stroke used to hit a ball on the racket side of a player in tennis?

There are two sides to the stringing pattern within the head of a tennis racket. The side of the stringing pattern which is used to strike the tennis ball is called the racket face. An easy way to remember this is to think of the racket "face" as having eyes. Eyes are a normal part of a face. The eyes of the racket face must see the approaching tennis ball, just prior to string-to-ball contact. I always use a black permanent marker pen to draw a face with eyes, nose, and a mouth on my teaching tennis racket.