Street Snake
How slow can you go? StreetSnake - available at better hardware stores everywhere - tell 'em bONGO sent you.
The StreetSnake comes complete with 1/4" 20 eyebolt and 10" bungee cord. Simply screw the eyebolt into the tripod socket of your camera then attach one end of the bungee to the eyebolt and the other end to your belt buckle. The downward force exerted by the bungee creates "dynamic tension" that acts to stabilize the camera.
The was shot - as pictured - with a 25mm (35mm equiv) lens and ONE SECOND exposure using the StreetSnake
ONE SECOND exposure, 105mm(35mm equiv.) lens and StreetSnake...
















The problems are manifold.

but because your eyes are shielded so the "rules" of eye contact with strangers are circumvented somewhat.
Use it to your advantage.