Quizzes cannot be made up unless you make arrangements with me beforehand. I don't like taking out the garbage, but if I don't, my house is going to start smelling really bad, really fast. If you find sharing your ideas difficult, begin getting used to talking in class by volunteering to read passages out loud. Not only will this make you more comfortable with your own voice, but it will help improve your oral reading. All in all, a good trade.
Attendance is mandatory.
However, I recognize that illness, other commitments, and overwork occasionally will require you to miss class. Remember, missed quizzes cannot be made up. Winter is coming. Therefore, I recommend that you save some absences for the end of the term. That is when you will inevitably get overburdened and sick.