I don't have ADHD or autism so I cannot guarantee this chapter is accurate, please correct me if I'm wrong/said anything harmful 
For 

Alaska loves listening to him info dump

New York listens to musical instrumental soundtracks to focus

happy stimming 

He doesn't verbal stim a lot because he isn't comfortable doing it around other people
Alaska, Florida, California, Texas, and Georgia are the few he feels comfortable verbal stimming around

Florida has fidget toys for whenever a state needs them
New York will ask by tapping his foot or leg while they're ever in a meeting/around other people

Alaska carries around noise cancelling headphones for New York

Florida uses tone indicators and will fight anyone that tells him not to

New York and Florida stim when other people do 

New York hates people standing behind him

New York does not like tight clothes (he usually just steals Alaska's) 

New York hates his food touching

Alaska's love language is physical touch, New York's is not
Usually they'll sit together and New York will be working on something else while leaning on Alaska or have his foot on Alaska's knee or something

Alaska loves whenever New York shows him something because he always gets really excited about it

New York: It's too fucking hot out-
Gov: So take off your jacket-
New York: No

Florida: people who make fun of autistic people are no longer allowed to use slime, weighted blankets, stress balls, or anything similar that originated and/or was popularized by the autistic community 
New York: Amazing, but consider: people who make fun of autistic people are no longer allowed

Florida: no, but what I found- I use like
Florida: I've been listening to Jurassic park and things like the fnaf music, because the piano helps
New York: [adds them to the queue] 

New York: hate when people say "look at me when I'm talking to you"
New York: like... first of all, I'm autistic
New York: secondly you're ugly.