10. During the Middle Ages, people signed legal contracts... by making an "X" on the document and then kissing it to pledge their honor. That's how XX became shorthand for a smooch. Source: Kissing: The Complete Guide by Tamar Schreibman Read more: Kissing Tips and Facts - How to Kiss Better - Cosmopolitan huh, interesting.
Dating tips that will actually help!
Of all the people you will know in a lifetime, you are the only one you will never lose.