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For just two dollars, lucky strangers wandering around Grand Central Station in New York could seek the wisdom of Emma Watson, which is a damn good deal.

Watson arrived in Grand Central via iPad, escorted around the premises by Vanity Fair's Derek Blasberg. With the magic of FaceTime, Watson dispensed some sage advice on matters ranging from how to spend a day in New York to how to be a good fourth-grade boyfriend.

She came up with a great scheme to announce a pregnancy: sit people down like you're breaking bad news, and then hit 'em with the good news.

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If you're in the right train station with the right iPad at the right time,