First repo found with the following request on the explore / search github page :

game created:[2012-10-01 TO 2012-10-30] size:[100 TO 500] followers:[1 TO 10] followers:[0 TO 10] language:python

What I do :

• find a project in github (I adapt the search request)
• clone it on codehacktivism organization
• checkout the project
• do some changes (perhaps something better or cleaner)
• git push
• do a pull request

All steps are timeboxed.

My last timebox : step 1 (5 minutes) : find a project step 2 (15 minutes) : test project and read the source code step 3 (30 minutes) : try to do something extra time (10 minutes) : finish the stuff and PR

Pull Request on command line :

• Install hub
• hub pull-request -b : -h <my_user>:<my_branch>