Americian custom(1)

Tweet

Last night, our office have a dinner together, during the supper, one of our leader tole us all the Americians are not as open as others country's thought. especially regarding male and female, one man should not voluntariness talk or touch with one women who is not her fax, If so, the girl or woman can charge the man, and not everyone hug for everytime meet as our regular thinking? Is that true?? what's the really custome in USA?