Be Immersed in a Second (or Third) Language
Before I lived abroad I never truly understood the beauty of becoming fluent or even proficient in another language. In the United States we don’t need to know another language, or many would argue that. Once you travel abroad you realize that especially in Europe, almost everyone you meet speaks at least two languages somewhat proficiently.
We in the States have a bit of a disadvantage since geographically we cannot country-hop as easily as Europeans can, and our only neighbors speak English and Spanish. This is why traveling, especially for us, is even more important. I would argue that in the globalizing world it really can only benefit you to speak another language. Not to mention, it opens up a whole new world of people you can now connect with and understand that you would never have gotten the chance to get to know had you never learned their language.
Living abroad is really the best way to learn a new language since you are forced to challenge and practice your skills on a daily basis.