Groups in Japan

When you consider about the groups in Japan, we can divide it into 4 major groups.
One group is mainly made up from students which belong in the same club. They spend most of the day together so they can get along very well. Involving in a club is very important to students and they are very proud of their club, so many students get together with the club members.
Another group is made from very active and noisy students. This group can be separated into two types. One type is a group which makes the class in a good mood. They can make the group get into swing so usually the whole class likes these groups. Another type is a group that changes the class into a bad mood. They are not considerate so even if the teacher is angry at the class, they cannot take that problem seriously and fool around.
The third type is a group of student that doesn’t care about others and just do what they want. While short breaks between classes, they don’t talk to anyone and just study or read books. They don’t like to make friends forcibly.
The last type is made from students that have the same thing in common. They always talk about what they like, and get information that is maniac. These people are called “otaku” in Japan these days. They are getting popular, and most of the “otaku” likes characters that come out in comic books. These people get together and make a group which other people who aren’t “Otaku” are hard to join.
There are differences at each school, but in my own experience, it was possible to change the groups you belonged to. The most important thing is to belong to a most suitable group for you to get along with.