What should I expect in a phone interview (and if that goes well, an actual interview) for an IT internship...

I forgot to add that, in the first sentence of my previous reply, I was referring to a preliminary phone interview. I didn't drop all pretenses until the in-person interview.

Bring up buzzwords like active directory, group policy, Linux, scripting, automation, servers and other shit normalfags don't understand.

Expect to touch proprietary software. I know it sucks the life force out of you, but you must persevere.
How does this fit in with above?

Depending on your exact environment, creating good documentation is crucial.

I can just imagine. A random white guy at an interview amongst 20 indians, his interviewer asks "what's your experience working with linux OS?" and the interviewee would go "Allow me to interject for a moment."
He'd then go home, open up 8ch.net/tech/ and bitch about all the pajeets stealing his job.

OP here. I have an in-person interview tomorrow. Does anyone know what kind of things I should go over so I don't choke on easy questions? From what I can tell, this job isn't a customer service job, it's just being the IT bitch for the company and fixing employee's computer issues.

That's even easier user. Remember that Helpdesk has been reshaped into Customer Service by your betters (i.e. the business degrees).
This means a few things for you:
1. You gotta hold your autism. Don't be rude, be workplace nice and respectful. You can rant in your cube if you're out of sight, but you gotta shape that resting bitch face as soon as you hit the floor.
2. You gotta know the basics of how to troubleshoot and how to do basic corp. tasks. If something doesn't work, check the cable first, that kind of basic troubleshooting. For corp. tasks, we're talking resetting passwords, following processes for hiring/firing, knowing how to use helpdesk software.

In fact, I'd wager most places would hire someone who knows how to fill out a Helpdesk ticket out the gate. The amount of nerds who get past HR only because they play Minecraft is way too high.

Welp, I'm pretty sure I bombed it. He didn't ask me a single technical question, he just described what the job was like and kept asking if I had any questions and I didn't know what to say. Even tried talking about things like football and, again, I had no idea what to say. It was 100% a test of social abilities rather than any technical abilities.

Oh well, thanks anyway anons.

Helpful tip for the future: Asking inane questions usually comes across better to normies than to ask nothing at all. They're so used to it, they don't even notice you're asking questions that only a sub-50 IQ monkey could actually need an answer for.
If he says you gotta troubleshoot hardware, ask if you have to jiggle the wires if nothing else comes to mind, then after he answers yes, nod sagely as if you are deep in thought while saying "mmhhmm"