"I spent my time on break trying to learn more about the Spanish culture, really taking advantage of it," she says. "I went on walks with some of the students and asked them questions."
As Facebook grows, millions say, 'no, thanks' →
Arwood, 47, a restaurant manager in Chicago, says she was surprised when colleagues on an English-teaching program in rural Spain in 2010 opted to spend their breaks checking Facebook.
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