Read the hearing notice or court appearance notice very carefully.
The notice should tell you:
The date, time, and place of the hearing and instruction telling you what to do. If you DO NOT show up, the judge or the hearing's officer may issue a default judgment against you. A default judgment means that you lose the case and you will not be able to get back into court to explain your side of the story.
The issues to be covered at the hearing or court appearance. You should know what you are suing for or what you are being sued for.