There's seems to be a steep cultural learning-curve there. How long did it take for you to get fully acclimated? We have a friend whose taught in Tokyo for almost thirty years and he says there are still some of the more subtle cultural quirks he's learning.
I don't know if I could give it a time frame. A few years for most things, but much longer for details. I am interested in all this, with a very kind of anthropological view and also I'm very open minded and more than willing to see things from other viewpoints than my own, so I'm sure both these things helped me take it all in and adjust. But yeah, like your friend, it seems like there are always things that sneak up on me that I don't yet know.