Don't know if you have been to East Asia before, but if you definition on "international" is in reference to the various differences between European countries, which seemed to be the case with several of the Europeans I worked with you will be in for some shocks. Firstly, due to the combination of simple population density and the mentality of the people, their definition of personal space is approximately zero. That really not strike us in Japan, but by that time we went we had spent most of the previous 16 years in Taiwan, so our definition of normal people density had adjusted. Therefore, having heard about the super crowdedness of the Tokyo subway, when we actually saw and rode it, we were looking at each other saying, what's the big deal? Nothing that out of the ordinary here. Personal contact between two men in an office setting when discussing a matter is considered normal, at least in Taiwan. Don't know about Japan for that. Conversely, when the first TGV sets went into operation in Korea, they had the standard European facing pairs of seats. That did not go over well with the female population. In essence the response was, "I am not sitting knee to knee with some man I do not know."