In September 2013 at the British Science Festival we did some experiments with students from local schools. The idea was to get them thinking about how information and idea spread through populations of people. This could be anything from fashions to rumours and gossip. The experiments had a visual element as the student could see on a projected screen how the network was developing through time. We also mixed things up a bit to make them think about how information might spread if there was an incentive to being one of the majority. It was good fun and I think the students got something out of it. The full article for the Conversation can be read here.