keep to yourself
US /kiːp tə jərˈself/
UK /kiːp tə jərˈself/

1.
혼자 지내다, 비밀을 지키다
to remain private and not share personal information or feelings with others
:
•
She tends to keep to herself and doesn't socialize much.
그녀는 혼자 지내는 경향이 있고 사교적이지 않다.
•
It's better to keep to yourself if you don't want to get involved in office gossip.
사무실 가십에 휘말리고 싶지 않다면 혼자 지내는 것이 낫다.