Slightly Smiling Face

Slightly Smiling Face. A face with a slight smile and neutral eyes. May be used as a form of passive-aggression or to convey the notion that "this is fine" when ...
 A smile given when you are trying to save someone in a bad situation, you are upset or sad but you don't want to show it.

Urban Dictionary: slight smile
www.urbandictionary.com/define.php?term=slight%20smile

9 de nov de 2013 -
Slightly Smiling Face Emoji - Emojipedia

https://emojipedia.org/slightly-smiling-face/