[He doesn't really notice. Not at first. He's trying to crane his head enough to examine his scars in the water. It's not really successful. Eventually, he gives up...]
[And that's when the human's attempt to hide catches his attention. Garrus jumps, his head snapping around and one hand subconsciously going for a weapon... that isn't there.]
Action
[And that's when the human's attempt to hide catches his attention. Garrus jumps, his head snapping around and one hand subconsciously going for a weapon... that isn't there.]