How do I play animations for only the top half of a character

So I was making a character and I wanted to make my guy’s leg animations separate from his top animations depending on weather or not he is walking or jumping or preforming any action, and I want to make my characters legs orient in the directions of were i’m walking but have the top half of my body follow the camera. A good explanation would be like how the characters in Garry’s Mod are when the player is moving and doing other animations.

Have you tried the layered blend per bone node in the animation graph?

I have not I will try that