copy from someone's blog.
for instance,in the airport,a group of ten,
if one person is saying something,while the others are listening with smile and answering from time to time ,they are japanese
if eight or nine in ten are speaking loudly,that's korean
if five or six are talking ,the others are looking around while listening,that's chinese
REASON:the Japanese emphasis on the collective priorities of the character,they would at the expense of themself to join the gourp.
Koreans, even if the representatives say, they have to express their opinions
No matter where ,Chinese people have the habit of looking around much on foreign soil, it's also bad habits .