The kissy sound and patting was really L's first sign. Now she also makes a panting sound when she wants to tell me, "doggy." She'll be in the middle of playing with blocks and she'll look up, break into a big smile and pant, and then look around for Indigo-- brilliant!
The jury is still out on the benefits of teaching your baby to sign, but according to the research I've seen, it seems to help babies communicate and lessen frustration. No to mention, that it's a fun way to play with words, and it's SOOO cute!
In the past month or so Baby L has learned all the most important signs: "dog" "food" "cup" and "milk." What else could a girl want? I think we'll work on "book" next!