The waving hand sign, Type-1-2 👋🏻, is a friendly and universal gesture used to greet or say goodbye. It involves extending the hand and repeatedly moving it back and forth from the wrist in a waving motion. This hand sign conveys a warm welcome, acknowledgment, or farewell, often accompanied by a smile. It is commonly used in person, but can also be represented digitally through emojis or as an illustration.