I have a large selection of shots like above. I usually pass by here most lunchtimes. Each time I take a few snaps if the sun is giving a nice amount of contrast.
I keep a lookout for the man with the placard and a reasonable selection of interesting people at key points in the frame. I have a few shots that I am happy with but no knockouts yet.
This shot was taken today while I headed to the best coffee shot in Lincoln.