Simple Things To Do In Class (with no trouble)?

17, and going into Senior year in HS.

So last year, one teacher got fired, the other class was a flop, 2 others were retiring and another also got fired...

But in my first class, ASL, where teacher #1 got unfairly fired, she stopped teaching and we all had fun and games for the good other 1/4 of the year.

Problem with that was I'm a pretty low key girl, pretty quiet, likes to keep to myself and listen to music and doodle while the rest of the class goes insane.

But it was really boring doing that for an hour each day.

Long story short, what can I do in my classes for this year if I get some free time at the end of class or if I get bored? I get bored really quickly and easily and usually lose concentration fairly quickly (which isn't great but oh well).

I don't want to do things that will get me in trouble or put the spotlight on me because I'm not that kind of person.

I know doodling, and daydreaming and stuff.

But maybe like origami? Maybe learn some pencil spinning tricks?

Just simple things I can do just to do, you know. Nothing huge and grand but nothing bland and boring like staring at the ceiling or something.

Just for those times in class when I need something to preoccupy me.

Thanks guys!