As a student I lived with people from 80 different countries in a hostel/dorm on my University’s campus. It was the best training I had learning about the world and its affairs. I think study abroad is a MUST HAVE experience. But even if you can’t study abroad, you can always learn about other cultures and other languages. Because learning about the world is the best education there is.
Here is a link to 20 websites that help learn new languages.