Read French-language tweets using a hashtag for a Francophone country (try Twubs, Twitterfall).
Have a conversation with Siri in French.
Tutor a lower-level French student.
Watch French-language commercials on YouTube and note any cultural aspects of the commercials.
Make a recipe from Marmiton or any other French recipe site. In French, describe your and your family’s reaction to it. If you bring it to class to share (please let me know ahead of time!), I'll give you some extra credit.