Extroverts thrive on small talk.
Introverts abhor it.
I think that's the two extreme ends deal again. I don't think the more social people I know 'thrive' on it, its just part of the warp & weft of their life. There is a time and place for it. Just like there is a time and place for things to be taken in a more serious manner, and more seriousness topics to be undertaken. Such extremes on a constant basis are not the basic nature of humanity, as Robert A. Heinlein's character, Lazarus Long wisely informs us:
"A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects."