checkout the code, run it though a coverage tool and a static analysis tool. And start writing tests for the less covered parts of the code base ( unit, functi

checkout the code, run it though a coverage tool and a static analysis tool. And start writing tests for the less covered parts of the code base ( unit, functional and/or UI, go bold, go crazy ). You will learn a lot, won't break anything important and people might even think you are useful later on. Just don't sit on your ass wasting time, quality is everyone's job ( you can quote me on that, when your boss asks what you have been doing ).