Look to the Internet for the company home page. This will help you to feel comfortable during the interview because you will know exactly what you are talking about. What you wear to the interview may not always be what you will wear on the job. Do not take any chances and dress professionally.
First impressions are very important.
Introduce yourself to the receptionist, why you are there, and whom you are there to see. Have a seat, relax, and look over your resume or any company information. Always address the interviewer as Ms., Mr., or Dr. Wait until being offered a chair and do not place any of your personal items on their desk. Listen to the questions that are being asked. Speak in a confident positive manner without being arrogant.