This is not to make light of ASD, it's just some things I've noticed and thought I'd share because they seem strange AND strangely familiar to me since my own diagnosis.
My dog adores people, he just can't get enough of them and expects only good things from them. A cuddle from any random person makes him even happier than food - and that's saying something! This makes sense to me because i feel exactly the same about animals, dogs in particular. The thing is, having HFA, I'm nowhere near so relaxed around people and at times actively avoid them because I just can't cope with the stress of social situations. My dog appears to feel this way about other dogs: although he will sometimes tolerate female dogs he often gets so stressed even seeing another dog in the distance that he has what can only be described as severe meltdowns! These meltdowns are entirely out of character compared with his normally friendly, eager-to-please personality.
He's highly intelligent (a Border Collie / Springer Spaniel cross) and can open doors (inward or outward opening), appears to know the time (to the minute) when his meals are due even when i forget, gets highly excited when we spell w-a-l-k or o-u-t (among other things) and can perform a whole host of weird and wonderful tricks and tasks. He also runs into glass doors, regularly falls off the sofa in an ungainly heap, and has tripped over his own legs more times than I can count. The perfect combination of intelligence and stupidity that I appear to share!
He alerts us to strangers approaching the house, becoming suddenly deeply-gruff and big 'n' brave sounding (for no reason, he welcomes everyone inside happily, he just SOUNDS brave - masking?) and insists on going ahead on walks or through doorways, stopping to look back as if to say "All clear, it's safe here." He even looks large and imposingly heroic, but he's strangely scared of bananas!? And spiders. And fluff that might be a spider. And the word "ears". And babies. For myself, I've faced down many challenges in life, big and small, but can't cope with ticking clocks, repetitive bass, the colour purple, or socks with an uneven seam. (Or diagnoses with no follow-up!)
Either my dog is similarly HFA or I've evolved canine traits.
Don't forget that he probably has very sensitive senses (hearing, smell), and probably feels very threatened by eye contact! Woof!
The senses? Yes. The dislike of eye contact? Hmmm, difficult to say. I tried to stare him out and he licked me on the mouth, Grrrrrr!