This is my generic back massage routine. It's what I do before I get specific and work on a painful area, or if someone "just likes a nice massage."
I start bilaterally with some deep palmar strokes down either side of the spine, then I move to one side and dig in a bit with my open fist. I work the low back, the paraspinals, the shoulder, the upper back, and then I move on to the other side.
Sink in, define their anatomy with your hand tools, and don't forget about the lateral ribs and scapulae!
Support me on Patreon: / massagesloth
My Facebook blog: / massagesloth
Twitter: / massagesloth
Google+: https://www.google.com/+MassageSloth