single out

US /ˈsɪŋ.ɡəl aʊt/
UK /ˈsɪŋ.ɡəl aʊt/
"single out" picture
1.

to choose one person or thing from a group for special attention, either good or bad

:
The teacher would often single out the brightest students for extra assignments.
He felt like he was being singled out for criticism.