I believe that everyone learns more with wide participation. If you're a quiet student, please keep in mind that you have a lot to contribute to the entire process. My observation has been that the quiet students make some of the most insightful comments. Furthermore, psychological research has shown that people learn more when they are active participants in the process. Thus, not only will your classmates learn more, so will you.
Students are teachers .
By this I mean that some of the best learning comes when you share your experiences with your classmates. I cannot possibly replicate the collective experience and wisdom of all my students. Listen to each other. Challenge each other. Share your experience with the class.