SevenCubed - 4:24 pm on Nov 19, 2013 (gmt 0)
"Uh, I can't see the stuff on the right in portrait, I'll rotate my phone to landscape?"
A few days ago I saw an image somewhere of an ape in a zoo cage playing with a smartphone. I think he had it figured out, he was holding it in landscape mode.
If the user doesn't figure it out, one of their friends will explain it to them. Monkey see monkey do.