knock, knock....who's there?

Daddy is so funny. he has taught Rigby to knock. since she already likes to close doors now she closed them and knocks on them and just loves it when we knock back. she squeals in delight. she also likes to knock on mirrors. when you pick her up and have her look at her image she will lean forward and knock. it is really cute. it also explains why there are tiny finger prints on every mirror in the house that are WAY too high for her to reach.