4 ms·

I am a Korean (lived in Korea for >30 years) and I think it is difficult...

• CuriouslyC 7y ago
  The main thing I notice is that Koreans have slightly rounder faces, and smoother features. Koreans also tend to be slightly taller and more robust physically. You are right though, the occasional Japanese person is going to be very hard to spot since they usually fall within the range of Korean diversity.
• burfog 7y ago
  You need to check the hands. Korea is the country that breaks hand scanners. By that I means the sort of biometric measurement devices used for secure entry to doors. Korean hands are pretty much identical.
• glandium 7y ago
  It's both difficult and not. It depends on the persons. There are many Koreans that are easily identifiable as Korean, and many Japanese easily identifiable as Japanese. And there are some that are hard to tell apart.