give somebody/something a once-over

US /ɡɪv ˈsʌmˌbɑːdi ˈsʌmˌθɪŋ ə wʌns ˈoʊvər/
UK /ɡɪv ˈsʌmˌbɑːdi ˈsʌmˌθɪŋ ə wʌns ˈoʊvər/
"give somebody/something a once-over" picture
1.

to quickly look at someone or something, especially to check their appearance or condition

:
Before the interview, I always give myself a once-over in the mirror.
The mechanic gave the car a quick once-over before we left for the trip.