Sit on the bed. Turn to the left and put your left hand directly behind your back, with wrist facing butt. Put your right hand next to your left hip with your wrist facing your hip. (Both hands are perpendicular to each other) With your butt firmly planted, twist your torso to the left. Repeat with hands switched on the right side. Or sit in chair, grab chair and twist torso. Feels gooooooooooood.