Size up

It's a good idea for boxers to size up their opponents before their matches.

Before we can begin to size up the problem, we'll need more information.

She approaches like she’s sizing them up. Five boys. Unarmed. A pile of swords over there. Ed Sheeran is there, but that’s not even the surprise.

The Century We had to size up our fellow legislators.

This shirt runs tight, so you should size up.