As far as I have been able to understand, the Japanese seem to keep things close to the vest. Friendly but remote and polite to the point of being invisible. It is in the music, literature, film and art that the Japanese really seem to express themselves.
I'm fortunate in that I've grown up in a worshipping tradition which is quite rich musically (and music is very important to me) and has a wonderful resource of hymns from all sorts of different parts of the Church. . . and to go to church and be able to sing that stuff and listen to a Bach motet or indeed some charismatic choruses.