On the green I am more of a speed putter than a line putter, and pick out an area to aim at. I use a Heel Shafted Blade style putter with no markings on it and prefer to set my ball so that I cant see any of the markings on the ball as I try to align my putter's blade at the area I am aiming for and focus more on the speed of the put than a specific spot or blade of grass.