
Mark down as
Judgmental Nuance
Using 'mark down as' can imply a quick, sometimes subjective judgment of someone or something.

He's dressed so sharply; I'd mark him down as a professional at first glance.
First Impressions
This phrase often relates to forming an opinion based on a first impression.

She carried so many books, I marked her down as a student.
Subject to Change
Your 'mark down as' categorization can change if new information arises.

I had him marked down as a slacker, but his recent work proved otherwise.
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