But in-person, like this? I'd think most people who live in major cities have become immune to approaches from random people - scammers, beggars, whatever. (Except for people selling the homeless newspaper, they're cool.)
If someone requests my attention and they're not asking a normal person question (like directions), I don't engage with them. Sorry. End of interaction, I have no interest in your crap, I have other things to do.