A world-class beauty who didn’t lead with her looks, she broke all the rules of celebrity dressing with a sunny smile A world-class beauty who didn’t lead with her looks, she broke all the rules of celebrity dressing with a sunny smile P ersonal style is best kind of style there is, and no one did personal style better than Diane Keaton . Her signature look was shirts and ties, snappy waistcoats and baggy trousers, an idiosyncratic version of menswear that was somehow both elegant and goofy. It