I don't do 'street' photography in the sense of pacing shopping districts waiting for weirdos and pretty girls to walk past. I do however take photos at organised events where people merge. In these situations I like to use wide angles, 20mm, 24mm, holding the camera below my face around about on my chest. I then go right into the action and photograph what I see. These days I only really photograph these events when family or friends are organising them as I have no use for photos of strangers (do street photographers hang these on their walls?). In one sense it's harder to be incognito amongst the familiar but in another they relax more and forget what you're up to.