Always have your camera with you, don’t lug your whole photo bag or a
tripod around like a tourist in your own town, just have your camera
body and one lens handy. It sucks walking in the street and seeing
something awesome and not having my camera with me!
Trick number 2
?Have a good lens, this makes a huge impact. I like the 50mm
F1.4/F1.8 and the 85mm F1.4/ F1.8, they are also small and relatively
lightweight.
The wide aperture isolates your subject nicely with a shallow depth of field.
Trick number 3
Don’t use a flash! Remember you want to maintain a low profile.
Rather push your ISO up if you have to. I personaly think an onboard
flash could spoil a photo.
Trick number 4
Before approaching a person to ask him or her if you can take a
photo, have your settings spot on. When they say yes, lift your arms and
snap snap snap, say thank you, and walk away. Easy.
Trick number 5
If you are taking a shot of someone without them knowing, keep the
auto focus assist light off, otherwise they will see it and spoil the
mood.