In order to curb any behaviors and nip problems in the bud, our boss had these signs made. I showed them to each of my classes this week. Sarah hung hers on the walls and on Monday I will be doing the same. I told my students that if I catch them doing one of these things I will point to the wall to remind them. However, if the behavior continues the student will have to leave the classroom. Being firm is part of classroom management.
We have had some teasing problems already so I hope that this will help. We will see how things go next week.