We are accustomed to applying visual effects to photos in cellphones or computers for the sake of pleasure yet few of us might have considered it fit for an art project. Reface is a video mash-up that records and remixes parts of videos of its viewer’s mouths, eyes and brows. Images dynamically change and confront the viewers with an artwork based on their appearance and identity. The resulting portraiture blends the personalities and genetic traits of the visitors to create a ‘collective group portrait’ of the people in the project’s locale. In such a portrait, race or gender are not the determining factors. Social factor is most influential here. The differences between the results achieved in different countries shows the constructed nature of our social responses. In other countries people had usually tried to make grimace, but in Mohsen Gallery in Tehran, the poses were too formal, like passport images! In the end, maybe our collective group portrait is an indifferent gesture; what we really are…