Boilerman/madmango,as a lead auditor and a QA manager,when i am auditing companies,my basic simplified premise is to see that 1, people know what their job functions and descriptions are,2 they are aware of the plans and procedures and know where to find them and 3, that these plans and procedures are being implemented and complied with and that conforming product is being produced.
Auditors should not be there to find fault or to attach blame, they are supposed to be independent, unbiased and honest and the main purpose of the audit is to give the degree of assurance that, if plans and procedures are properly implemented then conforming product should be produced.
The opening meeting should give assurance to the people in the company that it is the plans and procedures that are being audited, not the individual.The closing meeting should give you an opportunity to discuss any non conformances/non compliances that have occurred as generally speaking people comply,products conform.
The follow up, normally after the initial certification or audit would be in some cases to close out any NCR,s that may have been written or to audit another section or discipline,or to audit same sections again.
I have some generic training manuals (although somewhat lengthy) that i developed for auditors/auditees to give them a brief insight into auditing, what is expected of auditors and what is expected of auditees and would be glad to let you have a copy if you are still in need of them.