Our achievements in everything from art to rocket science may be merely a side-effect of the essential ability to charm.
Like every other human activity, flirting is governed by a complex set of unwritten laws of etiquette.
This is a very obvious example, but the more complex and subtle aspects of flirting etiquette can be confusing – and most of us have made a few embarrassing mistakes.
Research shows that men find it particularly difficult to interpret the more subtle cues in women's body-language, and tend to mistake friendliness for sexual interest.
This might just sound like a fancy way of saying 'letting your hair down', but it isn't.