I was quite the geek, although not everyone actually knew me.
I got my start in programming in freshman year of high school, and then from sophomore year on I was really going at it. I was in robotics club back in high school too. Whenever I had free time, I was most likely on my calculator programming. Everyone around me knew I was a calculator whiz.
In addition to that, I didn't get my first smart phone until the last semester of my senior year. Had a flip phone previously so the calculator was more fun.
On the bus ride to school, chances are I was either sleeping, or even more likely was that I was on my calculator.
Waiting for class to start? Programming on my calculator.
Bored in spanish class? Coding my game, decryption program, or chatbot at the back of class where the teacher couldn't see me.
Lunch time? I didn't much like the cafeteria. You'd find me out in the halls eating and coding my super awesome text adventure with tons of memory leaks.
Bus ride home from school. Testing out my own platformer game code.
Chilling at robotics. Pondering what I should do next on my text editor.
Sitting in chemistry class. Sharing with others my super secret chemical equation solver program and also telling people how I could code a game with a character that moves around in less than 5 minutes.
Friends in calculus got me excited about fractals and asking if I could make a fractal program.
Even sitting in a big SAT testing room, I remember finishing the test and then making (and then deleting) my own little games on the school calculators just for fun before getting up, or activating lowercase letters or whatever.
I could list so many more examples.
Basically, by the end of high school everyone knew me as the calculator whiz. I don't think any of the teachers ever really noticed. I do programming a tiny bit still, but I've been moving on to other things.
Honestly, you never really realize how good the high school days are until they're gone