tactful

a tactful person; a tactful remark.

they need a tactful word of advice.

couch criticisms in tactful language

Remember to be tactful when expressing a personal judgement.

It needs tactful management to persuade the board into accepting the plan.

I made a tactful retreat before they started arguing.

She gets them to accept these changes by tactful management.

see when they need a tactful word of advice or encouragement and do the necessary .