When an introvert is quiet, don't assume he is depressed, snobbish or socially deficient.
Introversion, when embraced, is a wellspring of riches. It took me years to acknowledge this simple reality, to claim my home, and to value all it offers.
One of the best places for a shy person to meet people is in a coffee shop. If you are a reader, bring a book and read it there - that gives a guy something to ask you about. Same goes for sketching, writing, or any hobby you can take with you.
A shy kid might look longingly at other kids playing in the schoolyard, afraid and unsure about how to approach them, but an introvert is perfectly content on her own.
When someone speaks to an introvert, her brain responds with a high level of activity. It is as if several lights start flashing on a control panel.
Introverts prefer introversion; we tend to gain energy by reflecting and expend energy when interacting. Extroverts have the opposite preference; they tend to gain energy by interacting and expend energy while reflecting.