"The pupils of our eyes dilate and grow larger when we see someone we're attracted to.Larger and dilated pupils are seen as more attractive than smaller and contracted pupils."
I recently heard on a teen show that big dilated pupils means you're in love. I thought that this was thirteen-year-old logic, but I guess it's true. However-- it's not a reliable meter. Drugs, darkness, alcohol, fear, and surprise also dilate pupils. Also, apparently anything does. i just went to the bathroom and had huge pupils and I just woke up. Not that I'm not in love with the toilet, but I think this concept is hilarious. No, online dating still wins.