HOW: Get set-up holding the ends of a band out in front of you. Begin the exercise by squeezing your shoulder blades back and together while pulling the band apart. In the finished position, your arms should at least be in-line with your shoulder, palms facing forward, and thumbs facing up. Return to starting position and repeat.
FEEL: You should feel your shoulder blades and the back of your shoulder muscles working.
COMPENSATION: Do not excessively shrug, do not forget to squeeze your shoulder blades back