Sounds like a tough day. I always have a couple cringe moments on the way home where I wish I'd have said something differently... or not said so much, or have said something I didn't.
I hope for the best!
I almost felt ready for scary interview questions. I was totally unprepared for what actually happened. Really thinking about it, I'm actually more worried about the second part - the meeting-real-people part - than I am about the test. Yeah, I gave some vague answers, but I at least tried to indicate some experience, and they should understand that.
I just hope they got some sense of how much I want to work there and why. I wish I was better at joking around or just being personable.