Last night, as I stood at the kitchen sink, my son tried to push me aside, without saying a word. Well, rather than just correct him, my wife and I decided to employ a little role-play. As I stood at the sink again, she played the role of my son and said, "Dad, will you please excuse me? I'd like to wash my hands." I said, "Sure, come on in." and then moved out of the way. You see, telling our kids how to do something may not always work, but teaching them by example—act it out if you need to—it can work wonders.