You know what? If I was out in public and walking by reason1 (or anyone else for that matter) and I was looking in his general direction and he
suddenly turned around and looked in my general direction, I would probably turn around and look in the direction he was looking.
Why? Because people are sometimes oblivious to their surroundings and I think my first reaction would be: "What did he notice that I didn't? Something dangerous perhaps?"
I think I may have to try my own little uncontrolled experiment tomorrow.
If I do, I'll post back with results.