Sam has been talking for quite some time, but fully interactive conversations are still somewhat new. And surprising.
The scene: I am playing with my birthday loot (beading supplies) while Sam sits next to me chattering and sifting through his own pile of beads.
Sam: chatter chatter chatter ... thirty dollars ... chatter chatter
Boss: Thirty dollars? Where did you hear about thirty dollars?
Sam: Dad, Sam thirty dollars.
Boss: Dad gave you thirty dollars?
Boss: What are you going to buy with thirty dollars?