Who knows how to stop students from gossiping in class?

As we all know, an excellent teacher must be a master in controlling the classroom and be good at organizing and managing the classroom! Otherwise, even if the teacher is experienced and the teaching design is perfect, some students who want to learn can't learn in class, and this class can't be called effective. Then, for the students who love to talk in class, the teacher has stopped them many times, but they are always banned repeatedly and will soon be chaotic again. We usually stop for a while and take a look at the student who is talking to let him know that the teacher is waiting for him. Or knock on the table, let the students who are listening to the class see this action, and the gossiping students will pay attention because they listen carefully. Sometimes, we may say: everyone is waiting for you, and you have wasted everyone's time. Trying to arouse his inner sense of shame and let him know that speaking in class is not his freedom, but hinders other students. At the same time, it can also form supervision over him. But none of these methods seem to work. The following method is commonly used by me, but it still has certain effect (my classmates usually talk less, but some exceptions are not excluded?

Exaggerated imitation of a bad phenomenon on the podium makes students feel that there are things around them, but it looks ridiculous. Then tell them that some of the people who laugh have this problem. You're laughing at yourself. Don't you know how to change it In this way, students can see their own shortcomings and accept my criticism without losing face.