Much fuss was made in May 2007 when George W Bush winked at the Queen. The fuss was made because a wink is quite an intimate signal, directed exclusively from one person to another, and is associated with male flirting. It is strange that a non-contact wink can carry more personal implications than a physical handshake, and in many situations more than a kiss on the cheek. A wink is given additional spice if accompanied by a click of the tongue. Not many people can carry it off. Additionally - and this was partly the sense in which Bush used it - a wink can signal a shared joke or secret.