One thing I did my first year was wonder around and helped people on the first few days. Mostly with things I knew how to do. (Like light set-up, running cables, networking) Tho, I would suggest that you, you know, ask first before helping out on something. Along with making clear of what you can or can not do.
The upside is you'll get to learn a little bit about how a project comes to life on the playa. Something useful for later times.
Other things to do include, join' a theme camp!
Or better yet, getting to know your local burners, and see'n how you can help.
But then again, you could bring your shit, set up on K, and ride around like the wind.
I have a little bit of Savannah with me. Shhh...