Oh he definitely knows what he's doing. Obi-Wan didn't spend a year on Mandalore for nothing after all. He can sense how startled Din is by the move, but is pleased when he returns it. The Jedi's eyes close when he feels the hand at the back of his head, quietly soaking up the moment.

The comment about not wasting time does draw a little chuckle. "I suppose I've missed you more than I realized," he says back in that same low tone. Keeping things private between them as one could in this public space. He had been lonely, there's no doubt about that. It was a strange feeling too. It felt like he hadn't been gone long, and yet it also felt like an eternity. His sense of time was definitely skewed thanks to the fact that he didn't remember his time here at all while back on Tatooine.