compared a normal handshake with a fist bump and found that germ transfer was 90% lower when bumping fists. so is this really the future of social greetings? orthis? the hopelessly inelegant elbow bump. if you must do something, do that but i‘m just as happy to say hello to someone or how are you, rather than that. what about fist bumping? no. i really have not thought about that at all. a fist bump is not something i think about. time for another socially awkward greeting, this time with historian louise rawls. we meet in front of a roman wall in st albans. some historians think the handshake started with greeks and romans as a gesture of peace, holding out a empty right hand to show you have no weapon. louise is not convinced. if you have got someone by the right hand you can do a little dagger work if you wanted to with the left and,