If you are planning on traveling outside the US, here's a tip that may make your trip more enjoyable. I find it's a good idea to learn some language basics. Sure, many people in most places speak English. But why not learn a few of their words? You may find that people are more willing to help you.
Please, thank you, hello, good morning, excuse me, good night, bathrooms are just a few to begin with. You can learn more once you master those. It has always helped me. And, don't worry if you butcher the words. Your effort will be appreciated.