How do you share the sweet spot?

@noromance 

lol
well, these days there are zero guests.  I'm starting to forget what it's like to have company over.

I had a friend come over a few years ago and he knows nothing about good sound, let alone the sweet spot.  The only sweet spot he’s familiar with is with a woman.  We were sitting on a three cushion sofa-he at one end, me on the other with a cushion separating us.  I asked him to move to the center, which was right beside me, so he could hear the difference.  He looked at me for several seconds, kinda slanty eyed and said no-I’m good.  It was hilarious.  I had known this guy for forty years.  Finally I got up and said now sit in the middle.  Only then did he realize what I was referring to.