The ultimate kissing quiz
Posted by staff / December 31, 2010
It can be a sign of love, grief or respect worldwide. Kissing is a natural act that gives millions of people physical and psychological satisfaction.
Where did it originate? Why does it make us feel good? And are there cultures who view it as a bad thing?
Show what you know at HowStuffWorks.com.
Photo credit: Fotolia
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