If you're looking for a teammate, don't be shy.
Post what you'd like to focus on for this jam and what skills you'd like to work with.
If you don't team up, no big deal! You should still make a game!
Ex.
Have: Programming (me), Project Management (me)
Want: Art, Sound
I have a game idea in mind so I'm going to make that but I'm willing to hear design ideas.