From Japanese Horoscopes :: Blood Types ^[1]:

Discussing blood type is a key part of introductions. Any high school kid worth their salt will never fail to enquire as to your blood type, as any western teenager would do with star signs.

My blood type is A. According to the Japanese blood type personality chart, this means I am:

calm.
patient.
sensitive.
responsible.
overcautious.
stubborn. (This should really read STUBBORN; I guess they are being generous.)
unable to relax.

Some famous, or infamous, type As would be Souseki Natsume, the author of “Botchan” ^[2], Ringo Starr, Britney, George Bush Senior, and – drum roll – Adolf Hitler. Souseki is cool, but the rest are sorta, I don’t know, a let down. Britney? Hitler? Am I really in the same class?

Anyway, if you know your blood type, head on over to Japanese Horoscopes :: Blood Types ^[1] and read up on your personality.