1- Use a signal for Zero noise. e.g. if I clap once, I want you all keep silent.
2- Come closer to two students chatting and surprise them.
3- Give clear instructions for each activity telling students what to do exactly and checking that they understand the task.
4- Attract students’ attention when you make transitions during the lesson.
5- Monitor the entire room.
6- Change activity when you feel that they are bored.
7- Check your students’ comprehension frequently.
8- Keep silent for some moments until students pay full attention.