I'm an HS student, interested in Physics and Chemistry.
I prefer to ask questions in chat than on the main site (because they usually entail some convoluted discussion and further clarifications before they're addressed :-))
If I'm not poking my nose into a chat room, I'm usually browsing through, editing and upvoting posts (though like I said, I don't have many posts myself).
Hopefully I can get myself a number of participation badges before the years ends (I'm pinning my hopes on a gold badge too :-))