One of our current objectives goes something like this: he should be able to make a comment on something he sees or hears or experiences, for the purpose of finding out our perspective on it, and then incorporate our perhaps different perspective with his own.

Yesterday we got out of the car into a very windy and cold atmosphere. Bright Eyes: "I can hear the beach." Looked at me.
Me: "Oh, no, that's not the beach. That's the wind making the noise."
Bright Eyes: "Wind making the noise."

I think he can do it!