Brother Cook is correct, and don't let anybody tell you different. Wear it on any finger of either hand, pointing in the direction that looks best to you. People will tell you "I was told by the most knowledgeable Mason I've ever known that it's supposed to be worn . . ." but there is absolutely no rule. Myth, legends, local customs, yes, but no rule. I've had people tell me "my Grand Lodge has a rule on it," but when asked to produce evidence of that rule, they never can.