sentence: A young man is outside on a tennis court in the middle of a trailer and several trees. sentence: He is alone and starts to illustrate different tricks that you could do when servicing the ball. sentence: For the first one,he has the ball on the end of the tennis racket that is upside down,he jilts the tennis racket up and hits the ball while it is up in the air. sentence: Once that is successful,more tricks follow and he does other things such as spinning,behind the back, and juggle serves.