It represents a cute face.
Making "U" or "O" the eyes and the "w" the mouth.
Someone using this is most likely trying to be cute.
While messaging
Peter: "You looked adorable in that dress today"
Ana: "UwU, tnx"
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it is a face when something good and nice happens. it is like using XD and :3
person1: did you see jungwoo of nct? he made my heart go uwu
person2: i know right he is so cute. he is the definition of uwu; jungwoo should be his name.
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It is like a reaction to something. You say uwu when something good happens.
Yo the the eagles won the superbowl!
AYE UWU LETS GET IT
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