I've blogged before on the challenges of being an introvert, which even today often comes with a stigma (good luck with job interviews when you're hopelessly terrible at making good first impressions). I was inspired to bring up the topic again by Glennon from Momastery's recent post on the subject. I can relate to a lot of what she says (I'm not a big fan of telephone calls either).
Fortunately people (at least in the Western world) are generally more accepting these days of introverts (and geeks, and gay folk, and people of mixed race, to name the other major ways in which I fail to conform to the majority). At my current age I can embrace being different, but it wasn't until I hit my 30s that I really began to feel comfortable in my own skin. And even now sometimes it can be a struggle.
So, for those extroverts who have never quite known what to make of me (and other introverts), here's a helpful primer that's been making its way around the internet. (It should be possible to enlarge the picture to readable size in your browser.)