Sometimes, it can help to let the teacher know you need extra encouragement to ask questions. Teachers can call on a few students, you included, to invite you to ask questions. Being shy is a gift and students should embrace their shyness. Everyone can’t be an extrovert. If during class is too awkward a time to ask questions, wait until after class to quickly ask your teacher one question each class. Just let your teacher know this is the method you prefer.