Subpoena - now what?

What is the name of your state (only U.S. law)? Missouri

I just received a subpoena on nov 27 to appear in court on dec 1 -
thought i should have gotten more time.

But the question is - just got this subpoena - 7 months ago i made a complain on a neighbor - riding a dirt bike on the city streets with no helmet no insurance and the bike wasnt registered - doing wheelies and going 20 mph above the speed limit.....dont know why i have to go or what to expect.
i have written out a few complaints and never had to go to court - so dont know what to do or what to expect - all i know is i have to go - any help here??

If you were the only witness, that's the only way the case is likely to go ahead. If you're going to run around tattling on people, you better be prepare to have to testify.

Speak to the prosecutor about what to expect. They should prep you prior to you testifying.