Question Character controlled by camera

Hi there!
I want to develop a game having a character whose movements are controlled by the camera.
e.g. when the player raises left/right hand, the character acts in accordance.

For that I need 2D human pose-estimation. What is the best way to do it in unity?
Is there a package/asset/plugin that you can recommend? Or must I develop it by myself?

Thanks in advance if you have any experience with such kind of project development.
Uri