Iwtl to copycat other people’s skills or methods

In this world with so many things I’m starting to think learning to perceive other peoples skills, and then being able to apply that new knowledge would be useful at a high frequency.

I’d like to learn that, to see someone do something and be able to correct myself into a shadow of their abilities. I first got that idea after realizing how differently some of my skills had improved in some fighting games due to the play style i tried copying due to thinking it was the best way to play the game. That same idea further reinforced after I read “The Will to Keep Winning” by Daigo Umehara, were he described himself dedicating months of his life to copying the playstyle of a Mahjong player before he was to try developing changes of his own.

So, where do I learn some monkey see monkey do proficiency?