What is tucking hair behind ears flirting?

Tucking hair behind ears can be a subtle but effective flirting technique. It can showcase the neck and jawline, which are often considered attractive features, and draw attention to the face. Additionally, it can be a playful and coy gesture, as it can indicate shyness or a desire to be noticed. However, the effectiveness of this technique depends on the individual and the context in which it is used, as it may not always be interpreted as flirtatious.