Sit on the subway, headphones in, fiddling with the smartphone to avoid eye contact with fellow passengers. [...] a new campaign called "Talk to me" wants to break that habit and change London's image as one of the loneliest places in Britain. The crowd-funded project is motivated in part by a recent Sheffield University survey indicating that 30 percent of people in the British capital feel isolated and uninvolved in their community, with an impact on their emotional and physical wellbeing. Talk to me co-founder Polly Akhurst said that the badges come with advice to withdraw from any conversation that makes the wearer feel uncomfortable. In August the charity is organizing the first official "Talk to Me Day" with flash mobs, social events and a picnic designed to break the silence and get Londoners chatting.