To promote clubface rotation make sure your left hand grip is turned back enough and then take half swing concentrating on the rotation of your forearms
The muscles around your left shoulder tend to get tight from your regular routine, such as desk work on a computer, so a gentle massage can get the blood flowing and muscles working efficiently
Tee the ball a little bit lower, keep the handle of the club back and make sure to take the club back a little bit more to the outside