I had a hand-drawn 'map' of the school so I could find my kindergarden class on the first day of school. I always drew maps for everything, places outside with things on them like 'The lightning tree' and The Triangle (where three trees had fallen in a triangle shape). I also mapped out dungeons and places in old video and computer games.
I started recording the locations of bombs in Minesweeper and putting them in Excel sheets to try to figure out of there was a set number of re-used patterns or if it was truly random.
I collected rocks to my mothers great frustration, and kept them in a big box, separated into smaller squares... grouping them by different things: Ones with Fossils, Ones that had sparkles, Ones that were different colors, etc etc etc.
I read constantly, and loved organizing my home 'library' all the time. My Mom had to ground me from my books to get my attention, since nothing else worked. When she would tell me I should 'go outside and play' I would smuggle a book outside in my jacket.
I wore the weirdest clothes to school, and could never understand why people would laugh at my ensemble.
I won a Dictionary for being the school Spelling Bee winner
I spent a LOT of time with the principle for not doing homework. It was pointless in my opinion.
I LOVED writing poetry (and still do) as a kind of challenge or word-game, as well as one of the only forms of self-expression of FEELINGS that I could find. (Not even necessarily MY feelings, just any feeling in general. I would take what I thought the feeling should be, and try to create it on paper)
I excelled at classes where subjective answers (like an essay question) were often seen, but could not do well with Math or Chemistry, which required a more A -> B -> C kind of thinking.
I sucked at sports, but anything that I could memorize as a 'routine' I was phenominal with and would nail to perfection. (Color Guard routines and Tap Dancing/Clogging)
I spent HUGE amounts of effort organizing my Spanish Notebook/Binder in highschool, and kept it from year to year, building as I went. Languages were super-easy and something I excelled at, along with computers. (I work in IT now and used to work as a Bilingual Translator)