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do dont icon. good true dos and bad false donts. like unlike error. green red circles on white backgrounds. okay fail sign. ok negative incorrect correct. social accept. approved positive.
A man who displays correct and incorrect answers.
young woman wearing medical face mask wrong leaving nose uncovered - improper use of protective corona coronavirus covid mask
A man in a white shirt displaying the improper use of a mask.
Asian woman's back and shoulder pain with incorrect posture while working on a computer and potential Kyphosis

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