But there are plenty of cultural offerings across London that draw students to every corner for some top nightclub, bargain ethnic restaurant or museum exhibition.

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When we turned the corner, the students in the lab had basically formed a wall about 10-12 feet away from us, with cell phone cameras at the ready.

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Then comes the "Walk it Out, " where the students, one at a time, walk diagonally from one corner of the room to the other.

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