Article: Bubbly and a buss: On New Year's Eve, it's all about the kiss.

Byline: Jessica Yadegaran

Bust out the bubbly. Wind up those noisemakers. And while you're at it, pucker up.

New Year's Eve is upon us, and it doesn't matter whom you've kissed all year; what matters is that you're locking lips with someone at midnight. So, why all the fuss?

"At one time, if a couple kissed publicly, it was the announcement of their betrothal," says Maureen O'Sullivan, a psychology professor at the University of San Francisco.

Obviously, that's changed. "If you are committed, it (the kiss) is a celebration of that," continues O'Sullivan, an expert on romantic love. "If you are not committed, it's just part of the good ...

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