In Japan, there are two important words you should know to express feelings: honne (one's true feelings) and tatemae (how one shows their feelings in public).
For the Japanese, it is very important not to show their true feelings in public, so they don't risk offending others. It's all about respect and not being rude, so even though you may not want to meet up with someone, you come up with a polite excuse so they think that you wish you could go, but simply can't.
Can you think of a time when you've used tatemae?
by Kathryn Rose