A review power point of personal space, especially when greeting others. My students in particular take things too far, so we have to be very strict on only high fives, waves, or fist bumps at school. There are pictures of actions and personal space that general education students do engage in, however, our students take it too far and hug strangers or lean on teachers. We have had to set the steadfast rule to not do those things.
This lesson is presented in a voting format - students put a thumbs up or thumbs down if the picture of personal space is okay for school. There are animations and sound effects.