What the hell are you talking about? Your guilt or innocence has nothing do with how you plead.
Guilty or not guilty, first time before the judge
OK, you have never been in the courtroom, FIRST TIME IN FRONT OF JUDGE, you will enter a plea of not giulty, and this will start the process, which if you are so inclined, you can drag out till the cows come home. However, considering the charge, and speaking hypatheticaly, if they offer 10 hours community service, and it sounds good to you, then take it with a giulty plea.