I had an issue with a professor, wound up in the dean of Chemistry's office. From there she recognized me and would always stop and make small talk. Eventually she told me about some research she was trying to get started and knew that research was good for pre-meds.
TL;DR, bi+ch about your professors.
In all honesty, most kids would do really well in a class on the first few tests. You sit up front and ask questions. Go to office hours and ask questions. It sounds manipulative, and I won't tell you that it's not. But, it's also relationship building. And if you're serious about being a doctor, Networking is life. Once they know you as Billy who always sits up front and asks questions--you can inquire about those sorts of things, and they'll tell you about what they have or that Professor X has some things they're looking for help with.
My research was a semester's worth that wound up being published by someone else without my name on it 1 year into my medical school career. I got in. I did well. If you find it great, if you don't, you'll probably be fine.