I"ll write about Otaku, Moe, Tsundere, Burikko.
"Otaku" is people who love Japanese cartoons or characters enthusiastically. Some people deepen their interest increasingly, and they play a costume of character they love.
Recently, "Otaku culture" is so popular all over the world, and a lot of foreigners of otaku visit Akihabara. "Otaku culture" is so unique, therefore this culture is one of our main culture.
According to the video we saw, "Moe" means the pink feeling. When they see or feel a cute character or maid, they often say "Moe~!!" and this feeling is the pink feeling.
"Tsundere" means icy hot feeling for a girl to covers up her embarrassment. They say "kimoi" or "shine" toward a boyfriend, but they like the boyfriend so they just not to be honest.
"Burikko" is a girl who wants to be loved by boys, and changes their attitude only to boys. For instance, they try to pretend to be delicate girl. I think they are likely to be loved by boys, but also be hated by girls.