Revealed: How you could soon tell how keen a date is - thanks to an app

After a first date it's normal to wonder if those warm, fuzzy feelings are reciprocated. Now, experts are one step closer to an app that will tell you if they're'just not that into you'. Researchers have trained a computer - using data from wearable technology that measures respiration, heart rates and perspiration – to identify the type of conversation two people are having. In experiments with 16 pairs of participants, it was able to differentiate four different conversation scenarios with as much as 75 per cent accuracy. Lead author Iman Chatterjee, from the University of Cincinnati, said the technology could one day give you honest feedback about yourself or your date.