The girl ran off at the mouth. It was like some sort of verbal freight train. Some of those references went right over his head, but other ones he managed to catch. Regardless, it didn't make any difference in his expression. His blank expression never faltered. He didn't even blink, he only stared at her. That was, until she finally asked him a question and Castiel tilted his head in a curious manner.
"How is there enough air in your lungs to speak so long without breathing?" Really? That was his curiosity about all this? Still, he let it go as he straightened again and considered the woman in her costume.
Then, the man in his overcoat was simply gone.
Her Spidey-Sense would barely get off a tick of warning before that voice came from behind and above her, standing atop the roof of the building she was hanging on-- it wasn't but a few feet above her. "I won't tell anyone." He said calmly, crouching down there as if to try and get a better look at the way her feet were attaching themselves to the wall. "And my name is Castiel." Big C.
The guy who didn't eat.
Good to put a face to the awkward, humorless guy on the network, right?