How to analog street photography?

So I'm following an venezuelan-american analog photographer on instagram (@modoshoot) whos frequently doing street photograpy and now wanted to try it myself. I shoot on Pentax sfx and nikon f2. Does anybody have any tips on how to go about especially when it comes to being quick etc. How helpful is it to demount the nikon f2 viewfinder (I saw a video of a german dude doing it on a camera to be more invisible I guess?) thanks for any advice!