Treat the examiner like a pax. SHow them how to use the exits, seatbelts, give them a brief etc. During the flight, ask him/her if they're comfortable. Too hot? Too cold? Think about turbulence.
yes, and i have read similiar advise when i was doing my PPL test. The examiner seemed damn miserable through out >> more of a lets get it over and done with attitude.
He would have jumped out the airplane if I went on about how to fasten the seatbelt!