
Size up
Quick Judgement
Used when someone makes a fast assessment of a situation or person.

The detective sized up the crime scene in seconds.
Initial Impression
Reflects forming a first impression, which may not be accurate.

I sized him up as trustworthy, but I could be wrong.
Subtle Analysis
Implies a nuanced read of nuances that aren't overtly visible.

He sized up the deal and found potential issues.
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