"We want them to feel like they're getting a good deal, " Weigman explains.

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We each have ways that we look at, categorize and prioritize information, and social environments allow us to represent that with a good deal of flexibility in how we want to do it.

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So far so good: no real problem if everyone does want to come to a deal.

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For one, the touchpad offers a good deal of resistance, and moving the cursor where you want it to go can be a challenge: sometimes it stops short on the screen, and occasionally it moves in a different direction entirely.

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McCain doesn't want to deal with unfriendly foreign leaders without them signing an "I'll be a good boy" pledge.

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Pet ownership is not well established in Asia, and Qian Hu has put a good deal of energy into educating its customers and investors about why people might want pets in the first place.

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