The purpose of this paper is to explore the type of social interactions that can be generated when a technological platform is introduced in a public environment. Here we present an interactive urban installation, which use a body-input as a form of a non-traditional user interface. Its aim is to enhance novel experiences that can enrich interactions between people nearby, sharing the same space and the same playful atmosphere. The prototype incorporates a grid of lights that dynamically generates patterns according to pedestrian’s position over the carpet. The installation was tested in various locations around the City of Bath, UK.