Shyness is inherently uncomfortable; introversion is not. The traits do overlap, though psychologists debate to what degree.

Psychologists usually offer three explanations for the failure of group brainstorming. The first is social loafing: in a group, some individuals tend to sit back and let others do the work. The second is production blocking: only one person can talk or produce an idea at once, while the other group members are forced to sit passively. And the third is evaluation apprehension, meaning the fear of looking stupid in front of one's peers.

In our society, the ideal self is bold, gregarious, and comfortable in the spotlight. We like to think that we value individuality, but mostly we admire the type of individual who’s comfortable "putting himself out there."

The secret to life is to put yourself in the right lighting. For some, it's a Broadway spotlight; for others, a lamplit desk. Use your natural powers -- of persistence, concentration, and insight -- to do work you love and work that matters. Solve problems. make art, think deeply.

Spend your free time the way you like, not the way you think you're supposed to. Stay home on New Year's Eve if that's what makes you happy. Skip the committee meeting. Cross the street to avoid making aimless chitchat with random acquaintances. Read. Cook. Run. Write a story. Make a deal with yourself that you'll attend a set number of social events in exchange for not feeling guilty when you beg off.

Figure out what you are meant to contribute to the world and make sure you contribute it

Introversion - along with its cousins sensitivity, seriousness, and shyness - is now a second-class personality trait, somewhere between a disappointment and a pathology.