Introversion/extroversion has nothing to do with how sociable, shallow or shy you are or not.
If you think that, then perhaps you need to look those two words up in a dictionary. Actually, I'll do it for you:
introvert
noun
a shy, reticent person.
extrovert
noun
an outgoing, socially confident person.
Your dictionary is wrong, shyness is mild fear of social situations. Introversion alone implies no such thing even though a lot of people (even dictionary writers apparently) think so because the two often appear together.
How about discussing the topic instead?