Bill Gates is quiet and bookish, but apparently unfazed by others' opinions of him: he's an introvert, but not shy.
Barbra Streisand has an outgoing, larger than life personality, who also battles with a paralyzing case of stage fright: she's a shy extrovert.
Shyness and introversion are not the same thing. Shyness is the fear of negative judgment, and introversion is a preference for quiet, minimally stimulating environments. Some psychologists map the two tendencies on vertical and horizontal axes, with the introvert-extrovert spectrum on the horizontal axis and the anxious-stable spectrum on the vertical. With this model, you end up with four quadrants of personality types: calm extroverts, anxious (or impulsive) extroverts, calm introverts, and anxious introverts. (Excerpt from Susan Cain's blog post Read it here)
Being an introvert is much more understood, but did you know there are different types of introvert.
As an introvert I found this test a great one and really accurate.
The Introvert Test – Which Type of Introvert Are You?
Leave a comment below to let me know how accurate this was for you