keep your own counsel
US /kiːp jʊər oʊn ˈkaʊn.səl/
UK /kiːp jʊər oʊn ˈkaʊn.səl/
1.
to keep one's thoughts, plans, or intentions private; to not share one's opinions or decisions with others
:
•
It's often wise to keep your own counsel in sensitive negotiations.
•
She decided to keep her own counsel about her future plans.