在绿色背景上做出不同的特定动作 Making different specific movements on a green background

手放在绿色屏幕上，做出不同类型的动作和手势，例如扩展触摸屏上的图像、点击、更改书本页面等。

Hand on a green screen, making different types of movements and gestures, for example expanding the image on the touch screen, clicking, changing pages of a book, etc.