That is really weird. Right now me and my sister are talking on facebook about their facial expressions and smiling. I had never actually seen Romney speak, just pictures of him and read transcripts articles etc. I was kind of fixating on how every time Romney stopped talking he'd look and Obama and do this smile and blink really fast. The blinking was bugging me. Obama's smile was more defeated, he looked down shaking his head and smiling a lot. It was really distracting, the captions were so far behind a lot of times I'd be reading what Obama was saying but seeing Romney, I think that may have been why I was paying so much attention to their body language. Interesting though that you mention it and I'm a conversation about it right now on FB lol.
I recommend factcheck.org for unspinning the spin,from both sides. The site was recommended to me by my Public Speaking professor. I had to take it to get my massage license and I took the class fall of 08', during the last elections, very helpful, for me anyway.