Yeah i think the main problem with adachi... Aside from her simp autism... Is that she thinks too much, idk, i dont consider myself a very sociable person but when its turn to be sociable in a party i just partially turn my brain off and thats it
I dont drink so its not like i rely on alcohol to be more "open", its just a matter of not really overthinking things, keeping a bit of analytic power, enough for you to able to just not spit everything your mind comes with in the moment so the risks of you messing thinks up are reduced
Now im not saying its easy, but i do think its a rather simple problem with a rather simple solution thats surprisingly not easy to pull off for some ppl