Kids are amazing!!!
I was just coloring with Jack a few minutes ago, when he pointed to the blue crayon and said "boo!". I was in shock! I made him repeat it a few times, and I still wasn't convinced, so I waited a few minutes and then asked him where the blue crayon was. He pointed at it and said "boo." I was beside myself! Apparently he also has figured out yellow, or "yewwow" as he says!!!! I am so proud of him!