Do you twitter?

One of my friends who is a Meteorologist in Chicago suggested that I join Twitter. So now I'm on there (as ERICSORENSEN) but I don't know what to do with it. I think you're supposed to let people know what you are doing at any given moment...which pretty much means I am either forecasting, making weather graphics, playing with Theo (the weather lab), or sleeping. If you know more about twitter, let me know! -ERIC