Comment from @Minimadaa
A big tell is long disclaimers and context setting before saying what they want to say (sorry to call you out- I do it too especially when scripting in my head ). On the other hand my ADHD husband will start talking with zero context, I.e. “can you give me their address?” When I have no reason to know who he is talking about. Or he will jump to a new conversation topic/story without a clear transition, leaving me totally lost lol.