'Mh-mh’ is basically Fuyutsuki’s irony/sarcasm flag. Also she has a sense of humor, even though she is mainly fond of puns and wordplays, in particular when it is a semantic joke (related to the meaning, e.g. when a word has multiple meanings). However it takes her longer to get the ones that play on syntax (e.g. ambiguities due the position of a word), since at a logical level they can be written in more than one form. But when she catches on it, she certainly will show her appreciation. Actually I guess that telling her a stupid pun is the best way to befriend her. ≖ ‿ ≖











