Shyness is an urge to hide delight.
Shyness is an emotion that branches out from delight depending on the situation.
Some people don't openly feel delight but feel shy when the situation is also delightful.
People feel shy when they receive a compliment from others, they think, "Don't praise me too much." A person blushes when being teased after getting too excited. We can say that shyness occurs from recognizing that you are being praised too much.
Shyness develops from experience. Failure after something delightful, or failure because of getting carried away or elated makes shyness. Wariness occurs in delight, and it suppresses the excitement.
This is why they are blushing but they smile, which differentiates it from shame. They are blushing because of the conflict between delight and suppressing it.
The actions of feeling shy are varied. The common actions include hiding, running away, or covering it up by talking a lot. People sometimes are seen giving weak attacks such as lightly hitting the other person's shoulder.
Shyness tells others that the person is not arrogant. Shyness has the effect of decreasing ill will. If someone receives a compliment coolly that person will be thought of as cool but not easy to make friends with, so shyness works to avoid this.
Males tend to like women who show shyness. This is thought to be because shyness is used as an indicator of age, and males have an inclination to want to surpass others.
Actions of shyness function to say, "I don't want you to think this is usual from now on." Shyness makes people avoid excessive expectations and responsibilities which exceeds their abilities. People will easily reject another's request after seeing actions of shyness, which in turn reduces failures in the future.
Shyness can give a good impression to others, but it also has the effect of lowering your value and impairs your dignity. However, There is a way to avoid this and gain confidence. It is called humility.
Humility is to consciously carry out the function of shyness. This is because shyness is too childish of a response. Most actions of shyness are physical expressions, on the other hand, humility is expressed by the contents of language. People show their maturity through making shyness one of their abilities by replacing the actions of shyness with well-conceived language.