Teaching to a global community kind of forces you to become open-minded; you encounter students from all sorts of different cultures, backgrounds, and lifestyles.
I'll tag @StephaneMaarek for this, though. I've been working with him as a co-instructor for an upcoming course. He's from France and traveled the world, while I'm a somewhat typical American who hasn't traveled abroad very much. He's given me some valuable insights into why some students behave the way they do. For example, in the US it's generally considered rude to expect someone to do something for you for free. Time is money here, and if you don't make money, our system is perfectly happy to let you starve on the street. We have an "everyone for themselves" attitude because of that. But other cultures don't work that way - they depend on each other to help each other out, and give their time freely. When they ask you to "guide them" on some project outside of your course or to mentor them, it's a compliment. He's seen this first hand, and it's opened my eyes.
