Em has been "talking" now for quite a while. First there was "da da da" then there was "ba ba ba," you know just getting used to sounds. Over X-Mas she seemed to add "dukka dukka" to her repertoire as well.
The other night cousin Ben was over and as he was leaving we were all saying "buh bye" as you do, but in that annoyingly condescending way you can only get away with talking to a baby. As we were doing what most adults would smack us for, Em actually said "buh bye" as well. Of course, this has not been repeated since and part of me feels that a trained parrot has no idea of what they're saying either (i.e. we said it so much she just repeated it).
Since that "monumental event", Em has now added "ma ma ma" to her vocab, which has pleased Sue to no end. For me, it's signifying that Em is becoming comfortable with more sounds and mouth movements and this kind of development can only be good.