"I'm hot and sexy. Now stop blocking the sun. I'm working on my tan." The woman who dons a string bikini is usually fun and stylish, takes great care of her body, and feels good about the way she looks. Chat her up if you're so inclined, but don't count her in for beach volleyball—triangle tops don't offer much in the way of support. To make the skimpy fabric work in your favor, take her for a dip in the ocean and pray for a big wave.