Use 'look in on' when visiting someone briefly to check if they're alright.

Short Support Visits

'Look in on' suggests a friendly or concerned visit to a person.

Social Check-ups

Suggests a quick drop by a place while doing other things.

Implies an unplanned or casual visit to a place.

Means a quick, informal peek at something.

Unlike 'enter', 'look in' means to view without going inside.

Used in formal contexts to describe an investigation or thorough check.

Conveys intent to find reasons or explanations.