In their own waaaaay.
Did you have a nice Halloween? We sure did. We had lots of kiddies come to the house and we had a blast. Hubs dresses up in the same costume every year and sits very still in a chair on the driveway. All the kids think he is a "dummy" and try to poke him or get the nerve to go up to him. When they get bored...MUWA-HA-HA-HA! He jumps up and scares the bejeezus out of them.
We never do that to the younger kids, but the older ones are totally free game. Especially the ones with facial hair.