One of the most common faults I see beginners have in their putting stroke is a lower body that moves around during the stroke. Stabilizing the lower body is important to build a more consistent stroke. Here is a simple drill to do at home. Get in your putting stance. Engage your core and your gluts. Now back up towards a wall until you feel your gluts lightly pressing agains the wall. Make a stroke without changing the pressure against the wall. Remember to keep your core and gluts engaged during the stroke. Do this 10-20 per day and your will see the benefits on the course!