A yellow face with a broad, open smile and scrunched, X-shaped eyes. Often conveys excitement or hearty laughter.
Similar to ? Grinning Face but with eyes that might say Squee! or Awesome! An emoji form of the >< or xD emoticons.
Grinning Squinting Face was approved as part of Unicode 6.0 in 2010 under the name “Smiling Face with Open Mouth and Tightly-Closed Eyes” and added to Emoji 1.0 in 2015.
U+1F606
? Smiling face with open mouth and tightly-closed eyes