Funnily enough I’ve actually always been the one to make the first move. That said, I didn’t really figure out I was ace until a couple years back.
Regardless, I think I’d still ask someone out, even knowing that I’m ace. Since I prefer to get to know someone as a friend before I go out and hold their gross, sweaty palm, they’d definitely know I’m not a sexual person, so there wouldn’t be any confusion. Ideally. I dunno, people are complicated, even with communication.