verbs
cross one's eyes as if in strabismus
"The children squinted so as to scare each other"
be cross-eyed; have a squint or strabismus
is a type of (narrower)
perceive with attention; direct one's gaze towards
"She looked over the expanse of land"; "Look at your child!"; "Look--a deer in the backyard!"
partly close one's eyes, as when hit by direct blinding light
"The driver squinted as the sun hit his windshield"
is a type of (narrower)
have a certain outward or facial expression
"How does she look?"; "The child looks unhappy"; "She looked pale after the surgery"