Make you expectations for voice level clear with a visual voice level chart! Use the voice level arrow (download for free) to indicate your expected voice level. I print my voice level chart as large as possible (minimum size 11" x 17"). To the left of the chart, I tape velcro circles (I like the self adhesive kind). I laminate my voice level arrow and put a piece of velcro on the back. I move the arrow up and down the Voice Level Chart, throughout the day to indicate my voice level expectations.