[maddyp]

whenever you speak - no matter who asks you the question always address your answer to the judge. make sure you stand when they enter and stand when they leave. don't leve before them and thank them for and thing they say such as 'please sit'
you should call the judge 'your honor'

hope this helps, and good luck. most judges are really nice and as long as you are polite and present yourself well you should be fine.