"Daddy" clear as a bell
"ank oo" (thank you)
"dere oo are" (when playing peekaboo)
"down"
"yes" (strangely, not "no" yet!)
and "ello!" to everyone we pass.
A lot of my friends' DCs of the same age are much more chatty. He does babble, and his comprehension seems pretty good - I wasn't too concerned until I saw my friend's DS of the same age who can name all the parts of the face, asks for "milk" and "biscuit" and basically can repeat anything she says (my DS rarely wants to repeat stuff).
It seems to me that the earlier walkers are later talkers, and vice versa (friend's DS has just started walking, mine at 10/11m.) Does that hold true in your experience? and should I be doing anything to improve his speech? I do chat to him a lot.