Ask your instructors for a Class C briefing. They will run you through local procedures.
Don’t try and wing it from third party info. Take an instructor with you for one run if you need to, worth every cent. You will be regarded well by CFIs as a PPL who takes some initiative when not sure. PPL level doesn’t mean the relationship between your training provider dries up, sure you can go out on your own, but use them if your not sure, just like I do with my training department. Keep the dialogue and relationship alive throughout your PPL journey which will make the CPL flight test a breeze.