Some other rangefinder shooting differences:
Rangefinders allow you to see your shot at the exact instant of exposure, and during tracking of a panning shot, so you know what expression you got or that your fast-moving subject was in frame.
Certain rangefinders, like the Bessa R3A and to some degree the Leica M3, have 1:1 or nearly 1:1 finder magnification. This allows you to shoot with both eyes open, and you can see the whole scene in front of you (although there are problems if you're left-eyed) with the framelines floating in front of you. You can also achieve this with 1:1 shoe mount finders, available in 50mm and longer focal lengths. The shoe mount finders also keep the typical rangefinder body from blocking the right eye of a left-eyed person. I find shooting this way to be wonderful, and when photographing people, feel much more connected to them, and less like I'm hiding behind a metal box.
Rangefinders are often quieter than SLRs, and look less "professional", so may attract less attention, depending on circumstances.
Some rangefinder focus rings have tabs or levers attached, and with a little practice, you can rough focus by feel before bringing the camera to your eye. With wide angles and a bit of stopping down, you can rough focus and be assured your DOF will cover you near or far. Cosina even makes a wide angle with three focusing detents so you can click into certain distances.
Lee