You’d think this would be a no-brainer, but, apparently, quite a few Facebook users have no problem adding strangers as friends. According to a study released late last year, about one in five users were willing to add a complete stranger as a friend on Facebook.

If you’d really like to interact with people you don’t actually know without exposing your personal information, consider adding Facebook’s “Subscribe” button to your Timeline; that way, you can let others view your public updates without having to add them as Facebook friends.

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