I don't think i'd have the balls to do it but i would love to do it! Do you give them any of your details? Do you offer to e-mail them a copy etc?
@minnnt
Thanks David, yes I have moo cards printed which I hand to each stranger who takes part in my project.
The cards have my name, Facebook page, flickr page, email address and mobile telephone number on them. I don't ask for any personal details from the strangers beyond their first name. I do ask them some open questions in order that I may get a little about them for their bio beside the photograph. It is entirely up to them what, if anything they choose to tell me. As far as contact details are concerned its an entirely one way transaction. I leave the choice up to each stranger should they wish to contact me for a copy of their portrait.
A few have but most I think just look on my Facebook page and some have used them as profile pictures.
Its not as difficult as you may imagine. People are people at the end of the day. If your approach is friendly and open, whats the worst that can happen, they say no.
If I were to approach you as a stranger and ask to take your portrait, how do you think you would react? If you were to decline, how would you say it? A lot of the people who have declined, were almost apologetic in saying no thanks.
People are surprised that I ask them but are mostly very amenable to the project. Its daunting at first but once over that hurdle, there is a realisation that people are approachable and will give you their time. I am still in regular contact with some of the strangers.