Not a First Word, but...

Cecilia likes to make the "quack" sound a duck makes. She first did it about a week ago with me while playing with her rubber ducky in the bath rub and then yesterday she did it numerous times with Grandpa! It basically consists of her holding her mouth open and making a "ah" or "ack" sound, but it is certain what she is doing. So cute, but not quite a first word...maybe first "sound"?