老板不满哼声

Idle cue for a stern office boss in a comedic mobile game: one restrained low closed-mouth nasal hum of disapproval resolving into a calm short exhale, human and readable rather than monstrous, no desk hit, no metal, no roar, no throat growl, dry close delivery, clean short tail, comfortable on phone speakers. Nonverbal only; no intelligible speech, words, dialogue, lyrics, singing, melody, or music.