JACK CAN...

...put his hands up "So big!" when you ask,

"How big are you today?"... say "dada" (over & over)
... say "mama" (only occasionally)

... say "kitty" when he notices one of the cats

... say "wawa" for water

... say "mmm" when he sees food he wants

HE CAN SIGN:
Fan (which he thinks is really funny)
More (only for food, & on his terms)
All Done (sometimes... other times he just throws the food on the floor to get the point across)
Milk (a new favorite)
And he also mimics the ABC's- adorable!

He will smell his feet, wave his pudgy hand in the air & say "Pee Eww!"

He also plays peek-a-boo,
which sometimes leads to blowing kisses.