As noted in previous posts, this Texas girl is NOT a traveler. This Texas girl gets weirded out whenever she crosses the state line (don't you need a passport to go to Oklahoma?).
Seriously, I might drive 80 or 90 mph while in native territory, but cross that line and I drive like my great-grandmother. I'm certain there a all sorts of rules that will get me thrown into some foreign hoosegow.
Take the fine example of NYC (my 1st trip here). I don't think I would last more than a few minutes (and that's being generous). While in the shuttle bus for 48 minutes to go about 5 miles, I learned about honking. It's a code. Maybe Morse, not positive about that, but maybe. Anyway, pick a language, any language, and tap it out in Morse code on your car horn. The long sustained blast is a period. Several sustained blasts is a question mark (let's not get into the exclamation point). Our shuttle driver spoke English but my Morse is pretty limited, but I'm almost positive our bus cursed at several cars along the way (politely, of course).
Then there was the subway. I'll get into that after the Valium wears off.