From 26 weeks, they appear to exhibit a whole range of typical baby behaviour and moods, including scratching, smiling, crying, hiccuping, and sucking.

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High-risk students were classed as those with certain personality traits, including having anxiety problems or "low" moods, as well as others judged to be impulsive or thrill-seekers.

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We saw a slew of different moods between the four units Hasbro brought in, including an angry one with pointed pupils that sings Sabbath-like riffs and an extroverted Valley Girl-esque mood.

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