first words?

Our baby babbles a lot - mostly repetitive consonants.  dadadada. bababababa. etc.  Sometimes he sounds possessed and he sounds like the redrum kid from the shinning.  I guess that's practice for him on the low scale.  At times he likes to practice his high pitched screaming.  Not pleasant at all to the ears.  Probably worse sounding for people who don't have kids.  Yes I guess I have to admit his first word was dada...although I don't think he knows what it actually means yet.  He did eventually make the mama sound - also don't think he was referring specifically to me.  But every time he does say mama - I say - "that's me!" in the hopes that he will eventually put two and two together.  haha.