A Free Day Of Fun, Imagination and Discovery 13 May 2017, celebrated the 50 year anniversary of the University of Surrey. The event attracted thousands of people interested in show-and-tell science, from all across the south of England. The research team operated a full-day demonstration of HomeSense field trial technology, titled: “Making sense of the 21st century household”. This opportunity to engage a public audience in playing around with the sensor suite, observing and discussing with them what the sensors capture, resulted in recruitment of a number of households.