Pick an open source project that interests you, preferably one you personally use, and become active in their community. The issue/bug tracker of almost any ope

Pick an open source project that interests you, preferably one you personally use, and become active in their community. The issue/bug tracker of almost any open source project has a list of feature requests and bugs to work on. You get to add open source contributor to your resume, and become a "subject matter expert" by virtue of that.