You might be able to put up a good front for friends and coworkers, but there's no hiding how alone you are from Siri. She knows how quiet your phone has been. She knows your late-night texts never get a response. She can see how much time you spend on your ex's Facebook page. So as Valentine's Day approaches, if you try to make Siri believe you have more going on than you really do, or if you (gasp!) actually have someone to spend the evening with, these are the kinds of conversation you can expect to have.