Humans, in general, like to present well. We invest in expensive personal grooming, wear bright colours and finely cut garments, go on diets and to gyms after Christmas excesses. On meeting people we often try to be funny, or clever, or sophisticated, or generous, or some George Clooney-like combination. We might not be good at it but we attempt to give other people the impression that we are someone they should look up to, or at least across at. But why is this? Vanity? Insecurity? Some personal “dress for success” motto?