Of course I must speak of the almost hug. Casey wants a hug and Derek shakes her hand instead.
I found this incredibly dasey-esque. I mean, all the times Derek takes every oppurtunity to touch Casey, and when it's out in the open he shirks away. He's so shy. And did anyone else note the hurt look on Casey's face when Derek didn't hug her? Because she WANTED TO HUG HIM!