Canny lighting in the corridor of the newly refurbished, still not finished, rather swanky and recently oft blipped Student Commons area, is motion sensitive; and therefore may qualify as a site specific interactive art installation in its own right, before any actual art is hung on the walls.  When passing through the area, I have, on several occasions, amused myself immensely by walking forwards and backwards repeatedly just to generate my own light show.... it's the little things....