Prepare to use and place facial expressions and how to gaze or stare, because of the perception of everyone who gets a stimulus or a message of facial expressions and gaze.

Very sensitive and different from one to another caused by the psychological factors of the person and the social and cultural factors in which it grows and develops.

Try an analogy like the insect's face is angry, as if this insect wants to pounce.

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Look at the insect picture below is glancing with the eyes

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While the insect images below are glancing with the eyes, as if this insect doubts the safety of it life

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While the insect image below is glancing with the eyes, as if this insect doubts the safety of it life, then run faster.

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When we humans appear angry face then seen and assessed other people like insects

So, Use rational considerations by considering the cultural factors of local people in assessing one's expression or outlook because it is uncertain what we feel is the same as the masksud and the purpose of the person giving the perception.

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