The researchers say than encouraging such simple "positive acts" could help children to get along with classmates and even prevent instances of bullying.

BBC: Kinder children are more popular

Officers need to motivate their classmates by being in even greater physical condition that the enlisted students.

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We get stuck focusing on our immediate circle and forget about classmates, former colleagues, even old friends.

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My classmates wore clothes that were threadbare even by the standards of rural China back then.

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"Some classmates at Yale hired me first, and that was even better, " he says.

WSJ: All The Pretty Houses

"It was hard to even imagine setting foot back into the building where such a tragedy occurred, " she told classmates gathered in the square.

NPR: Ohio Students Commemorate Classmates Slain By Teen

At his elementary school, where his behavior was exemplary and his assignments completed and his progress charted at the medial apex of all relevant curves, the boy was, among his classmates, the sort of marginal social figure who was so marginal he was not even teased.

NEWYORKER: Backbone