I just watched that - the guy gets really good results but its something ENTIRELY different than what I'd ever want to do on the street. To the extent possible, I'm really trying NOT to be involved in the photograph at all. I want people reacting to whatever they were reacting to BEFORE I showed up - having THEIR moments, not reacting to me or being part of MY moment! He sort of makes instant friends with people and then cajoles them into posing for a photo. If I knew nothing of his process and just saw his results, I'd like a lot of them, and I guess that's the bottom line. I'm not a purist so I can't really object - its not like he's harming anyone or anything. But on the relatively rare-ish occasions when my subjects are aware of me taking their photo in time to react, it usually takes something away from the shot. And its just not a way I'd enjoy working, even if I got good results at it. Even if I got to dress up like a failed rock star from the '60s or '80s. I also don't have any desire to go back to shooting film again, but that's a whole different topic...
In reacting to a set of photos I'd put up elsewhere a couple of weeks ago, a guy asked me something like 'how do you get so close without being seen - do you have a cloak of invisibility or something"??? Well, no, obviously not, buy by not having my camera at my face and by not looking right at people when I'm close to them, its almost like I do. An awfully high percentage of people don't notice anything about my camera or what I'm doing, although a few obviously do. My technique is pretty much as Pete describes his. I usually have my camera somewhere around my belly or waist and I"m usually shooting a 28mm field of view and I know basically what's in the frame at any given point. Sometimes I'm wrong and miss a shot completely (the old blank brick wall shot - then I can check the lens for distortion!), but its pretty rare. And when I'm shooting with the EPL3 or any other camera with a flip up rear screen, I'm framing the shot visually and looking down and people don't tend to pay any attention to me when I'm looking down eiher.
A lot of different ways of doing street photography. The main thing is to be able to see and anticipate the moment, the gesture, the expression, whatever - something that makes the shot a bit more interesting than JUST people walking down the street or sitting on a bench somewhere. Getting in their faces like this guy is clearly one way of accomplishing that...
-Ray