The picture says it all!
Ramadevi Vennelakanti, Prasenjit Dey, Ankit Shekhawat, Phanindra Pisupati · 2011
People share photographs with family and friends! This inclination to share photographs lends itself to many occasions of co-present sharing resulting in interesting interactions, discussions, and experiences among those present. These interactions, are rich in information about the context and the content of the photograph and if extracted can be used to associate metadata with the photograph. However these are rarely captured and so, are lost at the end of the co-present photo sharing session.