Object: Letter with lots of Xs at the bottom

Boys and girls, How many of you girls have a boyfriend? Some of you may be embarrassed to say. Do any of you guys have a girlfriend? Have you ever received a letter with lots of Xs and Os at the bottom--maybe from your girlfriend or boyfriend? What do Xs at the bottom of a letter mean? Xs stand for kisses, don't they? Have you ever wondered why Xs mean kisses? Hundreds of years ago, in medieval times, most peop…