the way these guys look at you, so invasive your camera seems, something I am always afraid/aware of , and yet find compelling, as though the man here as something to hide...
Another great shot John. Although, I notice that you 'cheated' and used a zoom lens for this one. Everyone knows that all good candids are supposed to be taken with primes! :)
This has so much going for it... the alley, the bike in the alley, the gratings everywhere, the towel hanging out the window, the stones in the pavement... oh, and a passerby. Very much my kind of shot!