If I'd asked you that question, and this was your answer, I'd probably have asked you all about the papers you'd been reading, what kinds of issues you ran into

If I'd asked you that question, and this was your answer, I'd probably have asked you all about the papers you'd been reading, what kinds of issues you ran into reviewing other people's source code, and the what and why of the projects you were improving. I'm sure I'm not alone in that.