I like someone with a mild form of autism. It's harder for him to hold conversation. Should I back off with the flirting and wait for him to make a move?

he most likely won't make the first move because... Well. People with even a small form of autism think a bit differently about such things than most people.. I should know since i have mild form of Aspergers.

You should do what feels comfortable for you and for him. Friendships / relationships are two-way streets. It might be that you might have to be a little more tolerant or accommodating because of his autism, but it does not mean you guys won't be great friends.

The way I understand autism, they are not great on picking up social clues so you might have to ask what he's comfortable with.

In this case I would meet with the parents if I could.

Since you both go to the same school is there some

way you might be able to help.