taken from weighttrainersunited.com
Great for the rear delts and upper back.
Face Pulls: An overhand or underhand grip can be used. On a seated rowing machine or crossover pulley, set the pulley at approx. face height. From a standing or seated position, pull the handle or rope attachment towards your face/neck with elbows held high.
Contract your upper back and rear delt muscles by squeezing your shoulder blades together while keeping your chest held high. This exercise can also be done on a pulldown machine, pulling the bar or rope to the face.