Recently I thrifted a cool little rangefinder camera: a Ricoh 35 FM. I am new to photography, and am planning on shooting in the night. However, the camera does not have as many settings to change as on a regular film camera. I can only change the range (in meters) and the ISO.

Any recommendations for how I would produce good shots?

I read on a website that I should shoot on the lowest settings, so in my case that would just be the lowest ISO which is 25.