The New York photographer sets up his camera on a street corner and asks passers-by to pose as if they are family, friends, even lovers. But if you lingered, stayed connected to that complete stranger for a few more seconds, what would happen? That's what Richard Renaldi wanted to find out. You might apologize and quickly move away or pretend it didn't happen at all. It's happened to all of us - you accidentally bump into a stranger on a crowded street, or someone's hand brushes yours in the subway.