bowing and scraping
A form of bowing in which the bower waves one hand in front of themselves, extending the other arm off to the side.
The term "to bow and scrape" comes from the gesture often being a deep bow, resulting in one of the bower's feet scraping backwards on the ground behind them for balance. For Danbooru's purposes, the bower's feet do not need to be scraping (or even visible) for this tag to apply.