Hi Mike, you will have a blast.
I have had the most success with taking "guests" in the sim with the visuals set to daytime and clear and going somewhere "scenic". Like around Mt. Rainer in the Seattle area, or Juneau in Alaska.
Many years ago, I took my dear old Dad into the old Hong Kong airport in the sim. I would imagine BA may well still have that profile installed. My Dad's comment was it was so real, he could smell the fishing boats.
I would also suggest making sure the sim you get has great visuals. Change aircraft types if you need to to get the best visuals they have available.
Just my thoughts. Have fun. Cheers. EGNT