HOW: Grab a dumbbell of the appropriate weight. In a seated position (ideally with your back against support like in a low chair at the gym if doing heavier weight) lift the dumbbell overhead. Each hand should be holding the dumbbell on either side. Draw your ribcage down to keep your core engaged. Keeping this engagement, slowly lower the dumbbell behind your by letting your elbows bend. Then lift the dumbbell back overhead by straightening your elbows.
FEEL: You should feel your tricep muscles working to push the dumbbell up. You may also feel your lats and core working to stabilize and hold the position.
COMPENSATION: Do not let your back arch as you are lowering the dumbbell. Keep your ribcage pulled down as hard as you can - especially with heavier weight.
