Looking someone in the eye --- literal Seeing eye to eye --- figurative (and intransitive) --- e.g. "they don't see eye to eye" Looking into someone's eyes --- literal Looking at someone's eyes --- literal, what an optician or doctor might do Gazing into someone's eyes --- literal Meeting someone's gaze --- literal

It's a common collocation to say look someone "in the eye." I looked him in the eye and told him to go away.

Hi Sasha, we would rather say "look a person in thier eyes" or "look into a person's eyes"

You can also look at someone “eye to eye”.