My teacher uses a Noise Meter similar to this one. The Noise Meter is a cool way to remind students the correct noise level that they should be using! You just use the paper clip and move it to the appropriate noise level the students should be using.
Lots of people today need to really THINK before they speak. Too many people have forgotten how to be kind and speak with respect. The saddest part for me is that children are watching and learning how to imitate the same behavior.