Keep Eyes Positioned Straight on the Golf Ball While Putting
In putting, the direction that your eyes are positioned at address to a large degree determines the direction that your putter swings as you make the stroke. For instance, when you set up to the golf ball if my eyes are pointed to the right at address my stroke is going to have a tendency to swing inside out. Conversely, if my eyes are pointed to the left my stroke is going to have a tendency to swing outside in.
Be Sure Your Golf Hat is on Straight
Let me give you a tip for those of you that wear a hat make sure it is positioned straight and what I would like you to do is I would like you to have the bill of your hat be parallel to the target line and you can check that when you set up to the ball by letting your eyes look up to the brim. You don't want your head cocked one way or the other. What I am going to do is I am going to make sure that my hat is on straight, that the bill is level with the ground and that is going to make it easier for my putting stroke to go along the direction that I want to hit towards my intended target. Put your hat on straight, have it level at address and you are going to start the ball on a better line every time.