For starters I'd hope you do not talk the way you type.
Secondly wear something nice. A suit if you have it. If not some dress pants/shirt with nice shoes and a sports coat. You dont want to give the impression you are a slum on society.
Also if you are young dont act young. The judge will probaly feel you are a bloodsucker from your parents. So everything/anything you can say to dodge those thoughts would be great.
I know every time I've been to court in MD for stupid traffic stuff the judge always takes the "way you look" into consideration and the way you talk. I've heard "Do you work, do you pay your bills, are you in school?" If they answered yes then 9 out of 10 the judge said "I'm not going to mess with your insurance PBJ and slow down". If you answered No then he piled on the tickets and court fees and said "Your parents can pay for this bill to since they havent taught you to be a grown up".
3 different judges on different days....all the same theory.