One of the first things I had trouble with when I moved to Japan was riding the trains. The train system is efficient and complicated, but there is also etiquette to riding the train. This involves things nobody will ever tell you you’re doing wrong. So here’s a quick primer on riding the trains around!
First, when you get onto the train, move out of the way so people can get off. This sounds obvious, but it can be really crowded and you might be looking around, trying to figure out where you’re supposed to be or something. Try as much as possible to keep out of people’s way. It can get hectic, so always try to keep clear!