Eejee is really starting to try out his language sounds. In the past couple days, he's picked up on "Night-night" and last night, he said "nigh-nigh da-da" three times (Ela and the Hobbit Wife were there and can attest). He (both Hes, actually) was so proud of this.
To be fair, you should also know Eejee is convinced he can communicate with coughing, and he's been trying to teach the rest of Michael Delving the varied and deeply significant messages conveyed by his vast hacking repertoire.