I'm an introvert in that I enjoy my own company a lot, and I get exhausted by social events. I'm also on the spectrum somewhere, as I find it hard to read social queues and such, which often makes me feel really awkward.
My sister has a million friends and used to host parties all the time, and invited me often. One day she said "people always love it when you come", and I was a bit surprised by that. I asked how so, and she said "you're so good at making people feel seen".
I didn't do it consciously I think, but I realized I would find people who were quiet and start talking to them. If I got the vibe they wanted to be left alone then I'd move on, but most of the time that was not the case. I'd ask about what they studied or worked with, or hobbies, as I do like to discover new things.
She since got kids so not so many parties anymore, but I got reminded of this a couple of years ago when I was at a wedding for a family member.
We're in Norway and another family member had gotten a US girlfriend who was there. As the evening wore on I went over and started talking. Her work was interesting and in contrast to what I knew from Norway, she lived in Nevada and I'd been to Las Vegas once so we talked about the contrast of that city vs the rest and so on. A couple of hours flew past and we were the last to go.
As we were about to leave she gave me a big hug and almost teary eyed said "thank you, you have no idea how good it was to just talk".
Again I was surprised, but she told me that she'd been with the groom's family for a week and nobody had really just talked with her besides her boyfriend.
So yeah, introvert, socially awkward me at it again it seemed.