Posting: Make 25 roleplay posts. You do not have to link anything to claim this post.
Holiday Cheer: Finish a thread revolving around one of the monthly holidays.
Characters: Make a roleplay post for 5 of your characters (or all of them if you have fewer than 5).
Heaps of Posts: Make five role play posts in one day during the month.
New Friends: Start a thread with a member you've never RPed with before.
You can check out all the standard rules and explanations here. As always, all required posts, edits, etc must be done during the month of the challenge.