There should be a court date on the ticket. This is the date of your arraignment. Show up to the court on the date and time listed and deliver a plea of guilty or not guilty to the court. Generally, the judge will offer some type of incentive for a guilty plea. Often this will include a reduction in the fine amount and traffic school to erase the point from your record.
If you want to challenge the ticket, you have two options. You may either plead not guilty at the arraignment and schedule a trial date, or you can request a trial by written declaration. A trial by written declaration allows you to challenge the ticket by presenting a written statement to the court instead of making an actual appearance. Directions for filing a written declaration can usually be found on the ticket.
If you want to challenge the ticket, trial by written declaration is usually the best way to go. If you lose your TBWD, you can request an in-person trial and have your issue heard a second time without any weight given to the TBWD. It essentially gives you two chances to win your case.