I know quite a few people with ADHD and they are the opposite, they tend to have trouble reading books, especially thick ones, due to their trouble to focus for longer periods. But they all love social interaction and are very good at it.
It usually leads to some pretty abrasive interactions with people, at least in childhood. You end up just kind of pissing off everyone around you.
As we reach adulthood though, your "being an adult"-ness can end up helping you out in controlling this. And people around you might be more likely to support you/deal with you (because they too have become more like adults).
I think that in adulthood you can find comfortable spaces to be in despite speaking before thinking. But as a child it's harder (at least that's what I experienced and saw with my friends).
And the important thing: those getting treatment can get a lot of this suppressed! ADHD medical treatment can almost completely remove this from your system (while you're on the meds, at least)
My experience with treatment, however (which for most is amphetamines) is that I become more verbal and unfiltered while on Adderall, to the point I try to only take it when I am working in a solo setting.
For me reading provides a structured, single train of thought that I find soothing compared to my often chaotic thought processes - so much so that if I'm not doing anything else I'll be reading, especially nowadays that a mobile phone is omnipresent.