When Flint walks into class one day, he sees two girls laughing and gesturing at another girl and he perceives that they are making fun of her. He immediately thinks the two girls are mean-spirited people. This brief period of observation that was the basis for Flint's judgment is called.

The correct answer is thin slice of behavior

Explanation: Thin slicing is the unconscious's ability to identify patterns in situations and behaviors based on "thin slices" of experience. Often, in the first week of class, an attentive teacher is able to predict the personality of each student and their possible performance in the discipline.

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