There are two ways to practice the short game. First are how-to shots, where you learn how to control trajectory through set up and swing shape. Second are situational shots, where you move around the short game area and practice specific shots.
Learn the basics to correct set up and posture to provide you with good balance during your swing
Tiger's set up is great to copy, he is braced to the earth, in perfect position and balance, and ready to deliver a solid golf swing