How to dress if your interview is formal? A: For men: Conventional suit or coordinating jacket and knee-length skirt. B: For women: Wear a belt and dark colored tie. C: For men: Conventional dark-colored suit (black, navy or charcoal grey are good) with a conservative shirt: plain pastel shades or modest stripes and dark polished shoes. D: For women: Don’t wear light colored socks or too much aftershave.