Yeah, I also get energy from small groups with good conversation, but only with certain people. I'm rather selective about the group.
Conversely, I think extroverted people can learn from introverted people - specifically, they can learn to appreciate the times where they're alone, rather than thinking of those times as "wasted" because they're not being spent with others (as I've heard from some people).
I agree strongly with this. I reckon that a lot of people, introverts included no longer appreciate alone time and instead spend it consuming something from a screen while alone. It is not "alone" with your thoughts, if filling the space with content.