staged is right, I thought more would initially weigh in with candid.
I walked by them, pre-visualizing this image, then politely asked if I could take a photo of them. They agreed and looked at me and smiled.
Then I said, no, just look normal, like you were before I approached you. please stop the smiling.
I waited for them to settle into position, then clicked at the decisive moment.
I think this shows how street shooting does not have to be rude and in peoples faces without asking for their permission first.
To be honest, they pretty much look the way they did before they noticed me.