When you are visited by an auditor, he/she will NOT be alone. At the very minimum, there will be:
A Company Escort - This will be someone from within the company who knows the area and the specification well. The escort will try to provide structure to the audit and will try to help out when he/she can. Often this will be the management representative.
The Area Supervisor and/or Manager - The area supervisor or other person directly responsible for the area will be present.