I have seen mention of the distance that you perceive to be when you cross the street vary. If when crossing the street, whenever I would see the BG move to cross to the same side as me I would immediatly double back and then be sure to see his intent. If he doubles back, Game on. Hand at a minimum on weapon. Verbally find out what his intent is right then. Proceed as necessary. Oh, And I love NY.......CCW laws......Not their self defense laws