Wonkblog: How to tell if other people think you're hot, according to science

One of the most pressing and mysterious questions for humans, the self-centered beings that we are, is what other people think about us. We expend a huge amount of time and mental energy wondering if our date finds us attractive, or if our co-workers noticed that stupid thing we said in the meeting last week. We agonize over our public speaking skills, our waistlines and our hair.