Street Phtotography: How close should you go?

As a landscape and ceramic photographer I am tentative about shooting ‘street’.  How close do I get, do I make eye contact, is it a little sneaky?  So for me whenever I do take the camera into the scary urban jungle I look for a story, an image that says something about the moment, that captures an instant in a life.  The Fuji XF 35mm 1.4 is just right I’m my view to get in close enough without being too intrusive.  Here is someone having a giggling fit….