She also said he must be courteous to witnesses and not get personal with them.

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Some are basic: be courteous, take a "time out" when needed (yes, these are for the parents).

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Be courteous and take the device off in locker rooms, public bathrooms, business meetings, movie theaters and anywhere else where wielding a camera would be improper or offensive.

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Be courteous, and wipe down the equipment when you're done.

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Be polite and courteous, even if the other driver is not.

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If you talk to the police, be respectful, polite, and courteous.

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Although privately his wit could be waspish and his judgment trenchant, his behavior was always courteous.

WSJ: John Golding | Cubism's Vasari | By Elizabeth Cowling