" bay-takalufi.’” He sat up straight and raised his hand like a schoolboy. “I do know that one. It’s informality as an expression of intimacy.” She experienced a brief moment of wonder that a father who hadn’t taught his son basic Urdu had still thought to teach him this word. “I wouldn’t say intimacy. It’s about feeling comfortable with someone. Comfortable enough to forget good table manners. If done right, it’s a sort of honor you confer on the other person when you feel able to be that comfortable with them, particularly if you haven’t known them long. "
― Kamila Shamsie , Home Fire