Lay flat on the bench with your feet on the ground with dual adjustable cables at the base of your feet at the height of your knees.
Taking an alternate grip across the body so the cables form an "X" grab the cables and set your palms at your side.
Raise the your hands in the same manner as a lateral raise to roughly shoulder height (as high as you can maintain form and keep contraction on the deltoids).
Return your hands slowly back to the starting position.