Many photographers, probably intuitively, are looking for the same themes on the street. They look for candid situations with high chance of success to get interesting image. I have mine mini-serieses as well.
Candid Street Photo Greg Yarmit's candid photography of strangers
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Candid Street Photo 
Both of these images tell a strong and compelling story to me. That is what street photography is all about. Excellent work!
Thank you!
I don’t know whether this is clear in my post. “Bus stops” and “ObaMania” are links to related images on Flickr.