Hazel is telling her friends about an experience she had with her supervisor at work. she says, "i was so angry, but i didn't let it show." hazel has abided by the social regulations governing emotional expression

expressive suppression

Explanation:

The observable behaviours from people to express their emotions is known as EMOTIONAL EXPRESSION. Most emotional expression involves the use of the face to express emotion, but, sometimes it can be verbal expression.

One of the social regulations governing emotional expression is the expressive suppression. Others are cognitive change, attention deployment, situation modifications, response modulation and so on.

Hazel, in the question was angry but Hazel did not let it show, this means that Hazel suppressed her emotions. That is to say, Hazel masked her facial expressions in order to hide her emotional state.

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