Be prepared, get a good night's sleep. Stop along the way to work and get some breakfast stuff like muffins, donuts, Danish coffee bucket abd bev service its a nice thing to have some coffee first in the getvto know you abd intro stage.
Next - be relaxed. Don't take over as in let the Auditor take the lead.
Ask them what they would like for lunch ( I liked working lunches - most folks got a variety from a Deli or Jersey Mike's etc
Auditor's won't think you are trying to bribe them as they will appreciate the nice touch.
Hopefully you have reviewed the audit format as its always a plus for an auditor to review docs when they are in sequence that matches the audit.
If you don't have something, say so - the biggest trap I ever saw were people that would tell me... well, we do that but don't document it or say something along the lines of, "to be honest with you."
I used to stop audits when that happened. Explain how it works and restart.
So, nice beverages and food. Follow the program, be honest and relax and as it was mentioned above we all make mistakes (so do Auditors).
Also. Don't be afraid to "nicely" challenge a finding that you don't agree on the spot - many will not because they want the "ordeal" over with, but you should as long as you know for a fact you are correct.
Most of all. Have fun!
All the Best,
All Rights Reserved,
Without Prejudice,
Glenn Oster.
Glenn Oster Consulting, LLC
Consultants for SQF, ISO-certified payment systems, Non-GMO, BRC, IFS, Lodging, F&B
http://www.GlennOster.com -- 774.563.6161