Introvert memes seem to be pretty popular these days. For whatever reason (perhaps the empowering nature of the internet?), introverts are getting their message out there that they're OK. That, "just because I'm an introvert doesn't mean I'm broken."
And I'm down with that. Really, I am. What bugs me... wait, let me restate that, what drives me absolutely batty, is when one of those memes makes a statement that such and such is true of introverts when it's not. It's true of some introverts, specifically introverted thinkers or introverted sensors or what have you. But it's not true of all introverts, and in fact, if you treat me the way that meme says you should treat me because I'm an introvert, I'll punch you in the nose.
So I've made my own introverts meme. (OK, OK. So I've made one before. But I've made a new one. That's my point.) Because lumping all introverts into one box is what bugs me, my meme focuses on how not all introverts are the same. We come in four "flavors." What makes us all the same is that we all live mostly in our inner world. Once we're in there, though, we tend to focus on different things depending on what flavor of introversion suits us.
There are four kinds of introverts. And not only that, but every extravert has an introverted side. So if you're an extravert and you're reading this thinking, "that sounds just like me!" That doesn't mean that you're an introvert. It just means you're identifying your introverted side.
If you ever talk with typology geeks, you'll see them using terms like Si, Fi, Ti, and Ni. That's just shorthand for Introverted Feeler or Introverted Thinker, etc.
So how can you care for your introvert? Start by figuring out what kind of introvert it is that you're caring for. Then be sensitive to the preferences and peeves of that person's particular flavor of introversion.