^_~ Edit Meaning

1.

You use this when you're actually winking someone.

Person1: You sexy!

Person2: ^_~

See ^.~, ~_^, ~.^, ;), -_^

2.

When you wink at someone.

I'm planning my big adventure into the dark... ^_~

See smile, wink, frown, sneaky, tricks

3.

You use this when you want to give a wink to someone.

Person1: You sexy!

Person2: ^_~

See ^^, ^_^, ;), wink, ^^;