We probably should have a thread for cultural disconnects like that. Never offer food with your left hand in Morocco, I know that. For that matter, never offer your left hand at all...
But back to baseball caps, my husband recently returned from Romania, where he was given a nice ball cap with commemorating this years Romanian Air Show. Earlier this year, we were given baseball caps commemorating the annual German "wandertag" (walking day/week), and last year, he bought a cap from the Vilnius tourism office, so obviously, baseball caps are popular here too. The logo you choose might identify you, though. And I still don't recall seeing a lot of people wearing ball caps around town.
:tumbleweed: