Incline Cable Fly

The mistake that turns this into a bad press is bending your elbow more as you go, which lets your shoulder and triceps sneak in. Keep a soft, fixed bend in your elbow the entire rep and let your shoulder joint do the moving instead. Start with your arm out to the side at shoulder height, then sweep it across and slightly up in a wide arc, finishing near the center of your chest. Squeeze your pec at the top of the arc rather than locking your arm out, then let the cable pull your arm back open under control, feeling a stretch across your upper chest at the bottom.