The gesture of scratching the palm of someone else’s hand, particularly between a man and a woman, has different meanings depending on cultural and personal contexts. In some cultures or social circles, this gesture is interpreted as a romantic or sexual insinuation and may be a subtle way of expressing interest or attraction toward the other person.
However, this meaning is not universal. In many places, the gesture may be completely neutral or lack a specific significance, depending on the intentions and the context in which it occurs. If it happens during a casual interaction or in a setting where gestures are spontaneous, it might not carry any particular.