Although nods are important, they are but a small part of human social interaction.

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How do you suppose that Google Glass technology might change the quality and nature of human social interaction?

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Indeed, there are numerous anecdotes about home or remote working, but ultimately the basic human need for social interaction means that we still need a physical shared workplace.

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Without sustained social interaction, the human brain may become as impaired as one that has incurred a traumatic injury.

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"Competition and social interaction are at the heart of human nature, " says Bromberg.

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On the human side, social is really a revolution in terms of interaction within the enterprise.

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Besides, much of the value of a college or high school education is in the social dynamic, the various teamwork opportunities and leadership skills gained through human interaction.

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We are social in a more elemental way: simply to exist as a normal human being requires interaction with other people.

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One could argue that social networking, at least at its core level, is a healthy activity: it contains human interaction, thoughtfulness and even a splash of compassion.

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