Ah, yes, the mix tape. The mating call of the introvert.

The introvert's dilemma is that we might not get a lot of invitations for the kind of socializing we like best--small, mellow gatherings. In other words, the kind of socializing other introverts like to do. Because, let's face it: We're introverts. We're all at home waiting to be invited to do introvert things. Which means, of course, that none of us are getting the invitations we crave. It's an introvert standoff.

We may have, she suggests, a thin boundary between our conscious and unconscious minds, living with one foot in the real world and one in the world inside our heads.

What is a friend? We probably all have our own definitions. For me, it's someone I don't feel alone with. Who doesn't bore me. Whose life I connect with and who takes reciprocal interest in my life. It's someone I feel comfortable turning to when I need to be talked off the ledge, and for whom I am glad to return the favor. Just a few people in my life fit that bill.

Jung was the first to propose the model of psychic energy, suggesting that for introverts, energy flows inward, while for extroverts, energy flows outward. Introverts tend to embrace this definition. It fels right for us because we know exactly what it feels like to have our energy depleted when we have sent too much flowing outward.