[填空题]That can be a good thing, with the Web serving as a kind of buffer zone (缓冲地带) for uncomfortable interaction. It’s easier to face rejection, there aren’t lulls in conversation or geographic boundaries-and social networking is like a window into the lives of potential mates. Say two people meet on Facebook, though a mutual friend, Immediately, they know whether the other person is single-without having to ask. ______ It’s all the details a person might encounter on a first or second date, without ever having to go on one. As David Yams, a recent graduate of Babson College, outside Boston, trots it: "Facebook has taken the potentially awkward first stages of flirting and getting to know someone into the comfort of your own home."

• A. it’s easier to approach each other, to talk casually, to get to know one another and feel out romantic potential without ever having to truly put themselves out there.
• B. "And you don’t even have to be on the computer to engage in it."
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