You'll realize how small the world is

If you're teaching English in China, you'll likely have students from all over the country in your classroom. But even if your students are all from the same village, chances are your colleagues will be from all over the world. And despite you and your students being worlds apart in terms of background, you're sure to find some with familiar interests and mannerisms that will remind you how small the world is. What once seemed so foreign will all of a sudden seem normal. Even an arbitrary demarcation such as "Asia" will seem tiny as a result of teaching abroad. This shift in perspective will stick with you forever.