For English speakers, the Japanese language can be difficult to master. The writing system is completely alien, sentences sound like something Yoda would say thanks to the order the words come in, and while it makes perfect sense once you get the hang of it, the Japanese’s habit of omitting pronouns can make conversations almost impossible to follow.
The good news is that for short visits to Japan you can usually get by with very little Japanese since people are usually extremely patient and accommodating. A bit of miming here and a “please” and a “thank you” there will get you a long way.
But if you’re not familiar with Japanese hand gestures, you may end up in a sticky—or at least rather embarrassing—situation…