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A wink is a facial expression made by briefly closing one eye.[1] A wink is an informal mode of non-verbal communication usually signaling shared hidden knowledge or intent. However, it is ambiguous by itself and highly dependent upon additional context, without which a wink could become misinterpreted or even nonsensical. For example, in some regions of the world, a wink may be considered rude or offensive. Depending on the relationship of the people involved, a wink could possibly constitute a sexual gesture.[2][3]
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