I do active thinking about projects I have, I recapitulate human interactions and reweight my decisions, I decide stuff that is going to happen. Someimes I do nothing, its not like I plan this stuff. I just plan not using any devices. (I also dont listen to music).
A friend and me worked for like a year back to back on a project and I like forced him to split work-time and come with me with the dogs. He absolutely loved it and said recently that he still forces himself to take a longer break for walks because that just makes him more productive.