Three (two of which have told me their diagnosys themselves, the third’s as told to me by his parents). I know them through two of my volunteer jobs. The son I only saw a couple of times and he was ‘difficult’ to communicate with. I felt we accomplished more on an emotional level, weirdly enough(?). The other two persons are both adults. With the guy I can communicate almost ‘normally’; we relate. With the gal it is a bit harder; we understand each other, again, better on an emotional level (at least I do). Then there are some who claim to be autistic (with varying levels of severity), and there are that I diagnosed myself (hardly evidence based).