Gus nods, forgetting that not only can't Shawn see him, he could probably care less at this moment in time. If the sighs are any indication. It does make Gus smile though.

He pays careful attention to where the knots are and when Shawn winces, working around them slowly, and returning to each spot until all the tension is gone.

Trailing down Shawn's spine he ghosts over the small of Shawn's back. Giving Shawn a few more minutes of his full attention, Gus works in silence. Eventually he leans back, sitting like this is giving him a tense back.