Being able to follow along in conversations. When people assume you're not listening, but it's because you can't seem to turn off that thought you have about something that happened three hours prior.

Not being able to talk, and do certain things at the same time. Starting a sentence, and then saying "Uhhh....-" until you've completed a task with your hands, or finished merging into traffic.

Letting messes pile up, because you forget about them!