These gestures are the residue on the screen of an iPhone from human touch (the grease of one’s finger). The gestures and twitches are often recognisable according to the app. For example, the swiping left and right of Tinder, and the imprint of stubble from a phone call. Each image derives from a different app, displaying the material remnants of interacting with a virtual window.

These gestures are the residue on the screen of an iPhone from human touch (the grease of one’s finger). The gestures and twitches are often recognisable according to the app. For example, the swiping left and right of Tinder, and the imprint of stubble from a phone call. Each image derives from a different app, displaying the material remnants of interacting with a virtual window.