I'm curious about when and (maybe more importantly) how you ask someone in public if it is okay to take their picture. I was in downtown Chicago this weekend and was snapping pics and saw many interesting people that I wanted to take a snapshot of but somehow felt it was an invasion of privacy.
Besides, when you see someone off in the distance and they are walking towards you and you see a good moment, do you take the picture then as they catch up to you, say "hey, I took your picture as you were walking, do you mind?". If you ask them first before taking their picture, then you lose the moment and they feel (and look uncomfortable).
My photographer friend says I should have anyone I photo sign a release form if the picture is a clear shot of their face and they could be recognized...
I'm interested in how everyone handles this situation (in particular, when the subject is an attractive woman and you don't want to come across as creepy).
Finally, when you do ask permission, how do you do it?


