It is the mastery of spiritual savoir-faire.

To use it frequently is a mark of lack of 'savoir-faire!

He went from one to the other with perfect grace and savoir-faire, and each change of position brought him nearer to the middle-aged man with upturned mustache, upon whom his movements were by no means lost.

You know you can't expect savoir-faire Of a cavalier of the age of four!

Here her energy and savoir-faire rendered her indispensable in every department.