This document discusses how to make contributions to open source projects. It outlines several ways to contribute, including using open source software, helping with translations, reporting bugs with detailed information, submitting patches as a contributor, and becoming a developer or maintainer. The document encourages participating in online discussions and finding projects of interest to get involved in, such as testing with the Linux Test Project. Overall it provides an introduction to different levels of contribution for open source and helps address how to answer interview questions about making contributions to open source.