Hi! I don't know about ABA but I can try to give a more general answer. They say "if you know one autistic person you know one autistic person" or something like that. Just treat them like a person (don't infantilize), get to know them, be understanding, patient, kind, accepting, etc. Don't make assumptions about them because they're autistic. Sorry I didn't really answer your question but I just wanted to try my best to respond. It's great that you want to learn more! 