Waving at people as they leave our house is a big deal around here. For a while, the boys always wanted to "wave for Daddy" when he left for work in the morning. (Don't get me started on the disappointed faces if Daddy doesn't see them and wave back).
I got quite the chuckle one morning when my husband was leaving and I asked if my son wanted to wave to him. His response was, "he can wave for himself today."