Oh, that's interesting, I usually see ^^ used as a smiling face without sarcasm... I wonder if that changed. I also always assumed it represents eyes, not eyebrows, as Japanese-style emojis tend to emphasise eyes for conveying the expression? :0
But yeah, Hexen, these are just smileys from the style of emojis like ^^ ^_^ ^.^, and the related ones n_n O.o -_- etc.
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