For men, dress slacks or chinos, a shirt with or without a tie, dark socks, and dress shoes. Avoid polo shirts on your interview, even if they are acceptable for working there.
Women should wear a combination of skirt (not too short), dress slacks, blouse, sweater, twinset, jacket (optional), and hosiery with closed toe shoes. Always keep accessories conservative, and bring a briefcase or portfolio for your papers, a working pen, and breath mints. Women should keep their purse small, and their make up and jewelry conservative.