There’s actually not much difference between snapping wildlife in the countryside and human activity in the city to be honest. You have to blend in and sort of camouflage yourself, hiding in plain sight so that your subjects don’t really notice you’re there.
So, on a trip to Manchester, I swapped my green waterproofs and trek-shoes for a mostly black outfit and my zoom lens and dSLR for a phone. And, while Mrs Sciencebase and daughter were doing some post-graduation shopping, I leaned against a few lampposts and some other street furniture and and got a few candid shots of Manchester and its daylife.