Get into bugs and you can just like.. check under a rock for guys. They're also the secret animals and they do so much cool shit. A lot easier to casually observe for a lil while here and there too. Birds are the next level. I keep an eye on the crows in my neighborhood, some ducks around town, some bugs in the park I go to. Sometimes I look em up and sometimes I just learn on first principle and make little observations as if im the first person to discover a lil critter. Watching animals do stuff and writing notes is super fun! I used to live out in the sticks and knew the roaming patterns of a few groups of deer who came in and out of the woods nearby. You'll begin to tjink maybe agriculture was a mistake and will go vegan, but just hanging out in one place for days until animals around just decided I was part of thr landscape and went about their business like I wasnt there was super rewarding. And I got a lot of reading done in the meantime.