Treat the examiner as if he/she is your mother/father-in-law-to-be. After all, the main question your examiner is going to ask him/herself is: "Would I allow my mother/partner/child to fly with this person?"
Apart from the technical flying/RT/navigation skills, this also requires a bit of social skills. Give the examiner a briefing as if he's a passenger, explain what you're doing, what your decision making process is and so forth.