I love how quickly toddlers soak up information at this age. Amongst his growing skill list, Conan has added two new words to his vocabulary list: this and that. It's very simple--if he is holding something out to you, he'll say, "this" as in, "what's this?" or "look at this!" And if he is trying to get something, he'll say, "that" as is, "what is that?" or "I want that." It's especially fun when he whispers it.
We shall be enrolling him on college soon--once he's potty trained of course...