Shyness 害羞
Shyness (also called diffidence) is the feeling of apprehension, lack of comfort, or awkwardness especially when a person is in proximity to other people. This commonly occurs in new situations or with unfamiliar people. Shyness can be a characteristic of people who have low self-esteem. Stronger forms of shyness are usually referred to as social anxiety or social phobia.
The primary defining characteristic of shyness is a largely ego-driven fear of what other people will think of a person's behavior. This results in a person becoming scared of doing or saying what he or she wants to out of fear of negative reactions, being laughed at or humiliated, criticism, and/or rejection. A shy person may simply opt to avoid social situations instead.