This is the kind of image I'd like you to think of for Autism Awareness Month. There's a story behind it: He got up at 5 AM after I went to bed at 2:30, he was grumpy about coming on a walk instead of staying in the nice warm car, kept saying "stay in the van" -- but once he saw the waves, the rocks, his friends the seals plus the seagulls (which he correctly identified as birds, good categorizing Leo!) he was all about this kind of happy. Which upended my sleep-deprived grumbling.
Be aware that autism can mean pure, whole-hearted, genuine joy.