Last night was This Happened #6 at the BFI in London's south bank. 4 amazing projects were presented but for me there was one that stood out particularly.

Audience is an installation conceived by rAndom International in collaboration with Chris O'Shea and consists of around 64 head-size mirror objects. Each object moves its head in a particular way to give it different characteristics of human behaviour. Some chat amongst themselves, some shy away and others confidently move to grab your attention.

When members of the audience enter the perimeter of the installation, the mirrors inquisitively follow someone that they find interesting. Having chosen their subject, they all synchronise and turn their heads towards them. Suddenly that person can see their reflection in all of the mirrors.

The mirrors were built with servos connected to micro controllers and the software controlling the whole thing used a motion detection camera from above. And as so many of these kind of installations are, this one was also built using Open Frameworks.