Victorian courtship required the knowledge of an elaborate system which included the methods of flirtation with gloves. Fans were used in a similar way. Among other types of symbolic expression, the language of flowers was used to convey messages without words.
Victorian Eye Flirtation, circa 1891. No no, don't actually come out and say what you mean, just make up incredibly silly blink-language and flower-language and manners manners manners. Good job Victorians. :p