I expect you to be involved in the course. What we do, for the most part, is discussion. If you are unprepared, unmotivated, or unaware, it will certainly reflect poorly on your grade.
An attendance policy is unnecessary. If you intend on passing the course your attendance will be regular and punctual. If your appearance in class is sporadic, I will advise you to drop the course.
The final exam will cover all readings, all concepts, all assignments, and all discussions for the course. If you are an attentive and active member of the class, the final is a breeze.