The Eyes Have It
In their book "The Secret of Golf: A Century of Groundbreaking, Innovative, and Occasionally Outlandish Ways to Master the World's Most Vexing Game," George Peper and Mary Tiegreen advise that where you look is one of the most critical details of putting. Looking out too far to the side beyond the ball will make you see an incorrect putting line -- that is, the path of the ball to the hole -- and throw off your aim. Instead, you should set your eyes directly over the putting line and look straight down at it. In turn, that also will help you to keep your feet and body parallel to the line, and you'll stroke along the proper path [source: Peper].