Kakashi's gaze slid over the words, then to the side to take in his quiet company. It would have been a different matter if the man had just sat next to him, despite the fact that there was plenty of wall to go between them and he'd conveniently chosen to sit /right next to Kakashi/, but the man was also looking at him. That connotated a little more than shared resting of the legs and Kakashi, without looking away from his book once, rose his free hand in greeting.

"Yo."