Streaks of red light flash through the air. A small circle of 15 teenagers stand huddled together, their wrists encircled in flashing red light. They wave their arms in the air in an improvised choreography. I am intrigued by their movements. As I come closer I realise they are all wearing LED light wristbands. I ask them why they are wearing them, and after much confusion about my questions, one girl hands me a leaflet for a mobile phone company. After more puzzling I realise these wristbands are in fact a form of light branding, a phone company has handing them out as a part of their advertising strategy. The teenagers notice my camera, and they start to perform, their private choreographies give way to poses for the camera. Amused by my curiosity about something that was for them very everyday, they give me one of their wristbands.
Later going through the leaflet I notice this funny symbol for human light. I decide to use it for my own map, to indicate where I discover behaviour orchestrated by light.