Shooting with a release the knuckles tucked in tightly just behind the ear hugging your cheek with a nice firm grip on the release, so close that your trigger finger will rub against your cheek as you go to squeeze off the shot. Also make sure that your shooting elbow is up and straight, this helps ensure that you make the shot with your finger only. The third point is just as everyone says make sure the string is touching the end of your nose but don't force it, of course that part just helps to ensure a proper dl for a proper line of sight.