9. When her boyfriend’s friends tell her how great he is.
A Japanese woman knows that she didn’t make a mistake when deciding to date a guy when she gets the seal of approval from other people. “I know he’s really great when, rather than him telling me himself, his friends tell me how great he is,” said a Japanese woman in her 20s. If you’re introducing your girlfriend to a friend, ask him/her not to tell her goofy stories about you, because she might take them seriously.