Wear a professional business suit. This point cannot be emphasized enough. First impressions are extremely important in the interview process. Women should avoid wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much cologne. It is also important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is an informal environment, call before and ask. Regardless, you can never be overdressed if you are wearing a tailored suit