I feel very differently about taking pictures of people in the New York subway. 
It is a document of where I live. And as distant and aloof as many are, the intimacy can be titillating.
It is like standing in the stranger’s house, massive and on wheels, and no one even notices if you’re there. 
Unless of course they have a problem with an app.
my bad side
a writer's blog
Great and disconcerting pictures!
I believe the dude by the door has you as a marked man. They all see you. Now if only you would turn around one more time, introduce yourself and ask for their name,. You could be a tourist of the New Yorker. A commuter surfer.
You’re right about the guy in sunglasses. The others: no.