FaceNT
When a neuro-typical person looks at someone’s face, they look mainly at the eyes, then the mouth, then briefly up to the eyebrows, like this (the lime green being thicker where the person spends the most time looking).
FaceASD
When someone with autism looks at someone’s face, they look mainly at the eyebrows, then glance at the mouth.
FaceTriScan
The triangle scanning method says: first scan across the eyes, then scan down to the mouth, then scan up across the eyebrows, then do a quick scan of the entire face.