SETUP: Set a cable station to slightly below shoulder height. No handles needed, just grab the opposite cable in each hand with an underhand-grip. Get into a split-stance for support, and position yourself behind the weight stack, so it’s pulling you forward.
LIFT: Keep your shoulders pinned back and try to pull your elbows & hands directly above your shoulders. The top of the rep should look like a “Y”.
TIP: Arms going over the head like this will work the lower traps, a very weak muscle group for most people, so go light and focus on feeling the muscle rather than throwing it around.