Some tips that are given includes: be relaxed, slightly lean forward, start with the palm on the racket, toss the ball in a straight line, move your foot forward as you strike the ball and the ball should be hit in the middle of the racket. This video will help to improve your serve technique.
Tennis Lesson in East Coast/ Marine Parade ( Laguna Green, Laguna Park, Villa Marina, Eastern Lagoon, , Casafina, Mandarin Garden, Seaside Residence, Bedok residence, Bayshore, Costa Del Sol, Seaside residences, Silversea residences, Shore residences, Tanamera, The Cape, Kallang)