I marked a few issues as "simple", and I noticed at some point earlier we seem to have done a similar excercise labeling issues as "newbie". If you are a newcomer wishing to contribute to the project, these might be a good place to start. Check 'em out:
https://issues.apache.org/jira/secure/IssueNavigator.jspa?reset=true&jqlQuery=project+%3D+PIG+AND+%28labels+%3D+newbie+OR+labels+%3D+simple%29+and+status+%3D+open D
