The "Use-It-Wisely" tactic is brilliant! I'll be sure to incorporate it into my class in the days to come. For younger teachers, I recommend that you do not let age get the better hold of you. It is easy for students to want to see you as their peer rather than a figure of authority. In the event that student's begin to cross the line, I will pull them aside and talk to them personally. Never talk to a student in front of a class for this is likely to embarrass them.