悩む顔

A yellow face with open eyes, raised or furrowed eyebrows, and a broad frown. May convey a variety of moderately sad or tense emotions, including concern, anxiety, alarm, disappointment, and unhappiness. 

Apple’s design features the same eye expression as on its 😯 Hushed Face. Not to be confused with 😲  Astonished Face or 😵 Dizzy Face. 

Samsung’s design previously included sweat droplets coming from its cheeks, a shorthand for anxiety in manga and anime.