>>96258679ask them about their interests, favorite cartoons, life goals, let them gush about that shit to you even if it doesnt interest you, watch their favorite movies and tv shows with them, basically let them dump all their pent up rambling about pseudoscience or cartoons or harry potter on you.
if they're the self aware type, reassure you they aren't oversharing. Gifts related to their interests are also a good way to get on their good side. i can vouch for that being an easy way to make an autist crave your penis, i'd suck dick for stuffed bats and spare medical equipment.
also, never play hard to get with an autist. they literally won't even try unless they're the type who doesn't understand personal space.