People who often lick their lips when talking are suppressing inner fluctuations caused by excitement or tension. Of course, in the winter when the air is dry, it varies from person to person and cannot be generalized.
In the process of communication, there is a lip biting action, which shows that the other party is self-condemning, self-mocking, and even self-reflecting. If you cover your mouth with your hand when you speak, it means that the other person is wary or is hiding himself.
Some people sip their mouths into the shape of "I" at critical moments. At this time, their psychological activities are like this: they have made up their minds. Such people are generally strong and have the perseverance to stop until they reach their goals. Once such a person decides to do something, no matter how hard he has to work, he will do it well and successfully.
When talking to someone, if the lips are slightly backward, it means that the other person is paying attention to what you say and is very interested in what you say.
When a person's whole lips push forward, it may be a manifestation of defensive psychology or a coquetry. When a person's lower lip pushes forward, it shows that he is skeptical about the external information he receives and hopes to get a positive answer.
In the process of talking to someone, the other person bites his lower lip with his upper teeth, or bites his upper lip with his lower teeth, and his lips are closed, which shows that he is listening attentively to another person. He may be carefully analyzing what is said in the other person's head, or he may be seriously reflecting on himself.
Cover your mouth with your hand when you speak, which shows that this person is introverted, conservative and shy, and will not present himself to others easily or too much. Covering your mouth with your hand has another meaning, that is, doing something wrong and covering yourself up. Opening your mouth and sticking out your tongue means the same thing, and it also expresses regret.