This chart can be used for students to visually monitor their conversation in the classroom. Whether it is voice level, appropriate words or any other sort of conversation aspect, students can be more aware of themselves.
In my classroom, the X's start out on the bottom of the chart. Anytime a student says something innapropriate, they have to move an X to a mouth. If they move 3 X's throughout the day they do not get an incentive at the end of the day!
Use as you wish :)