nonverbal communication / the "OK" sign

2day in my lecture class for SOCIAL PSYCHOLOGY...
i learn that 1 sign have lots of meaning...
let me intro to u what is NONVERBAL COMMUNICATION...
nonverbal gestures that have well-understood definitions within a given culture;
they usually have direct verbal translations, like the "OK" sign.

the "OK" sign:
US ~ OK
JAPAN ~ MONEY
FRANCE ~ ZERO
MEXICO ~ SEX
ETHIOPIA ~ HOMOSEXUALITY

so when u at dis 4 country...
plz be careful when u use the "OK" sign..