For those who have not visited Japan yet.
Here are some things you may find unusual in Japan.

You will find people lining up on the left side of escalators.
Those who are lazy and don't want to climb up the stairs stay on the left.
Those who are rushing and wants to walk up the escalator, goes on the right side. So you cant just stand there if you are on the right side.

Many western people may find it rude that most Japanese don't have the habit of holding doors. But that's quite normal. But please don't get mad, we were just born without that culture. I find it very nice if someone actually holds the door for me.

I also hear that some people find it very scary how silent we are. A lot of Japanese realize how friendly foreign people are when they go overseas because a lot of people say hi and starts talking to you.
Nowadays, the young people are very loud in trains, but most buses and trains are quiet. I think a lot of Japanese are just shy. They want to talk but they are very modest and unconfident about themselves. Once you start talking, you will realize they can be very nice. But it takes a lot of courage to speak out.

In the wintertime, there will be many people wearing masks. Like a doctor mask for operating. One foreigner told me this was scary because in his country, only robbers and terrorists wear masks. We wear them when we catch a cold, so that we don't infect others.

When you go to a barber, you will get a head and shoulder massage. People who are not used to head massages may not like these services. This head massage has a process where the barber kind of hits your head. I didn't understand what was good about it when I was a kid, but after facing my computer 10 hours a day and my head starts banging, I would die for those head hits.

This one is famous but a lot of people bow down in many scenes. It's not a deep bow like the one you do before a king. It's called an "eshaku" where you just slightly nod your head. It's just a motion of saying excuse me or sorry and even thank you. Japanese constantly apologizes. Even when there is nothing to be sorry about, we say sorry. You'll even see people bowing down over the phone when the person on line can't even see it. It's definitely in our blood.