I study and watch everyone. I like looking at their eyes and trying to guess what type of person they are. I will notice and take look at every single detail. I like people watching. You can see two things that are almost exactly alike happen more than once and the ooutcome will be different everytime. It's unpredictable. There are general rules we can all follow, but there is nothing specific. You don't know.
I will learn some things from watching people but I don't like copying something exactly, I mean bleeh I like coming up with my own things. Observation is hard, and I think it depends what you are observing them for. If you're doing it out of curiousness than it probably won't help you. If you're doing it to copycat peoples behaviors it might be more useful to you. I just wanna know, I don't wanna be.