Good luck. Considering the proliferation of annoying phones on everyone's faces, all the time, I would venture out and say that most people in NYC are now more inclined to shove a camera up someone's butt than let them take their picture. At this point, as far as NYC goes, it takes a special person to do it, and very careful choosing of subjects. I find most people to be either fully engaged in their iCrap, or in a pissed off mood (because of it, and not) so thread carefully.