Italian photographer Daniele Barraco approaches his street photography differently here. Instead of going after his subjects, he sets up shop and invites people off the street to pose for a more or less formal portrait. The results are great!
via Island Bay Photography
This might be a great way for a camera manufacturer to market its new models, say in a mall. Invite people to pose for a free portrait taken by a pro. Get them to choose the camera. Take the pic, display it on a big screen (or on an iPad) for all to see, print it and give a copy (with a brochure of the camera that took the picture) to the person.