Everyone knows geeks are cool now. And my favourite geek of the moment, the new Doctor, Matt Smith, is leading the pack with his preppy mix style. Well, if it's good enough for Daisy Lowe. Whatever you do, don't try bow ties (they're still not cool). But definitely give a trilby/bowler hat a go. Tilt back on the head and wear with some square framed sunglasses. All you need now is a model on your arm... Try this checked trilby (above) from Tesco for £7.