Work around the shoulders and under your collor bone (i think its your collor bone), also in the center of the back youv got some really strong muscles there which are the ones you can feel working when you walk, sometimes they can get really sencitive(sp) try using different parts of your hands or your elbow, really does work.. im not sure if your ment to do this to your back but if you push down on the persons spine and tell then to breath in it should click and will feel nice.. i give back massages to my b/f quite alot.