We smile when we are happy.
All humans beings need to express their feelings. We sense a situation and our body responds to it.
The body has its own way of expressing. We do not always need to express our emotions and feelings via words. The body has its own language which includes hand gestures and facial expressions.
Some other factors are very important too. Like, when we are scared, the hair on our skin stands up. It is known as goose bumps. When we are very sad, tears fall out of our eyes. Even gestures of hands are very important too.
Some Expressions of human:
1. We smile when we are happy.
2. Our skin color turns red with rages and our facial expressions become very bad while we are angry.
3. We sweat and our skin becomes pale when we are shocked and scared.
4. We cry when we are sad.
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