I used to think that "the decisive moment" was a one shot kind of thing, hence the name. But after I learned more about street photography through videos and by reading up, I realized that that was not the case. More often than not, it's waiting patiently for the right subject to come into frame, and that means taking more than one shot. You can take a dozen of photos of the same spot but with different subjects, and only filter out the "decisive moment" photo afterwards. So far, these are my 3 best "decisive moment" shots.
The first one (above) was inspired by Vincent Laforet when he was on DigitalRev's "Pro Photographer, Cheap Camera Challenge".
"Things tend to happen in patterns" and "Sometimes you can just imagine something is gonna happen there, and sometimes, you just have to wait for it." Two quotes I picked up from just that video. Two very simple sentences, but it taught me a lot about photography. And maybe, it could be of help to you as well!
The bottom two photos were taken because of the great light and shadows. I had quite a bit of difficulty taking the second photo (directly below) because I had to wait for someone to walk past that small pathway where the light was entering and I wanted to make sure there were no cars at the back either. I took quite a number of shots before I finally got this.
It's not always that easy to get the desired shot, and if there's one thing that I've learned - it's that it takes lots of practice. Only after doing it countless of times, can one start predicting "decisive moments" and knowing exactly what kind of subject and framing one wants on the street. I'm not there yet, but I hope to be half as good as Henri Cartier-Bresson one day.