what do people say when you tell them you're autistic?

"oh i see."

"that explains it/a lot."

"i'm sorry"

"i thought so."

"i know"

some ask me outright, to which i say "yes"

no one has ever told me: "you don't seem/don't look autistic." or "no you're not." (i'm sorry those who have been invalidated by others)

is it and early dx thing? i was 4 and can't mask