Noah's reaction to Christopher

Here's a little video of how Noah reacts to Christopher when he (Christopher) gets upset. I first discovered it when Christopher started throwing a tantrum about bedtime about a month ago. Noah her him crying and got upset, but stopped the second Christopher stopped yelling. At first I thought it was just a coincidence, but then it happened again... and again. It doesn't happen every time Christopher gets mad or sad, but it happens often enough! I can't believe how good of a faker he is- especially with that little puckered lip!