find a project you like, look up their bugzilla/Trac/whatever and find bugs you can fix. submit patches. (if it's a large bug, you may want to ping the projec

find a project you like, look up their bugzilla/Trac/whatever and find bugs you can fix. submit patches. (if it's a large bug, you may want to ping the project's mailing list to make sure someone else doesn't already have work underway for it).