GoingCandid

Ask the person afterwards
I would not ask someone upfront, as it will change the look of a person. You
may take the shot and talk to the person afterwards. If you really want to be
sure that he agrees, you have to have a model release signed off. There are
such contracts available for the iPhone/iPad (look for EasyRelease) which
makes the handling much easier (they sign with their finger). With this practice
you have bullet proof evidence that you can use and publish the photo.
But remember one thing
Don't think that you can setup a street photo. That is not the meaning and this
is not right. In my opinion this is even worse than breaking the law by publishing
a stranger’s photo. So don't even think about it.
The conclusion
There are enough examples
to show you that there are
legal ways to street photography.
If you still don't go
out to shoot in the streets,
you are a wimp. Stop using
the law as a reason why you
don't go out to the streets to
make interesting photos.
Anyone can do it and there
is nothing illegal about it,
when you do it the right
way.