Toddler Language Awareness, Part 2

I wrote recently that ML (2) has begun to show an understanding that there's a difference between German and English and that not everyone speaks both languages. I got more proof the other day! He was bringing my (American) mother upstairs and said to her "Come to my (long pause) room." This is huge because I've only ever heard him use the word Zimmer for his room. I could just see the wheels turning in his little head - Mema speaks English ... we're going to my room ... say room and not Zimmer. How cool is that? I'm so glad I didn't miss it :)