the.com/staring
Looking, but past the socially agreed expiration date.
means Fixing your gaze on something or someone for an unusually long, often uncomfortable, stretch of time.
from From Old English starian, to gaze fixedly, kin to words for stiff and rigid, because the eyes basically lock in place.
Two-second ruleEye contact past two seconds reads as flirting or threat.
Animal senseMany species read a fixed stare as predatory aggression.
Brain effectProlonged staring can trigger eerie face distortions.