Don’t stop listening in class just because you don’t think you are going to be called on. Pay attention to the questions the professor is asking, because they will most likely start to follow a pattern. Watch for that same pattern on your exam.
Reading every case isn’t going to totally prepare you for class, nor exams. You have to engage with the material. Look at hypotheticals, ask questions and use variations of the facts in the casebook to test out how you would apply the law in practice.
Do you know your legal stuff?
Do you know when a federal court has subject matter jurisdiction over a non-class action case? If you do, you are a litigation rockstar.