When a man scratches the palm of a woman's hand, here is what it means

Answer
In many cultures, scratching the palm of someone's hand during a handshake is widely regarded as a non-verbal signal or a secret code. Specifically, when a man scratches a woman's palm with his finger while shaking hands, it is often interpreted as an explicit sexual proposition. It is a subtle, physical way of testing boundaries to see if the other person is interested in physical intimacy without openly saying it. However, because this gesture is invasive and non-consensual, it is generally considered very inappropriate, disrespectful, and a form of harassment in professional or social settings.