Hey guys!
Thought I’d share a tutorial I just uploaded which covers the use of rotation interpolation in the context of adding a more dynamic feel to your character’s movement.
Questions, comments and critique are welcome! 
No to devalue the effort but this is a bad practice when you deal with actual humanoid characters. Leaning should be done in animations, a system like this is hard to scale and adds in additional processing to the character.
There are a lot of ways to do things. Animation might be more efficient. But I actually believe this is pretty similar to how weapon sway/bob was designed in Unreal Tournament 3. Thanks for the tutorial, I found it helpful 