Hard to fit this into a "portrait" per say, as it's a candid moment really.
Great street candid. Wish the background gentleman was a bit more in focus or out of focus though.
Inspiring, I find myself interpreting what's going on, thanks to the gesture and expressions. I think a step or two to the left would have been beneficial, both to reduce the impact of the collar on the right guy, and to improve focus on the left one.