The next time you hinge open that notebook PC and smile at a feature that makes it easier to use, give a thought to Bill Moggridge, who passed away Saturday from cancer at the age of 69.

ENGADGET: William Moggridge, portable computer and human interaction trailblazer, dies at 69

Next, ask to speak to a supervisor and repeat your request with a smile on your face.

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Stand tall, smile at people who make eye contact and figure out who to approach next.

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The next morning, the Libyan surgeon walked in with a "told you so" smile.

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