Look at your left hand find where the fingers join the palm, the base of your fingers. Now lay the upper portion of the grip in the base of the fingersĀ of the left hand (right hand golfer). Find the upper thumb joint of the left hand. Find the life line on the right hand. Extend the right hand straight out to the side. Move it towards the club. The top of the life line of the left hand forms a pocket that fits into the upper thumb joint.