It can mean know-how or it can simply be to know how to do (something).
savoir faire?
It literally means "to know how to do". It means know-how, especially social know-how.
"Savoir comment faire" literal or "savoir faire" defines a personal capacity
savoir-faire, compétences
"To know how to do" is one English equivalent of the French phrase savoir faire.Specifically, the infinitive savoir means "to know, to know how." The infinitive faire means "to do, to make." The pronunciation will be "sah-vwahr fehr" in French.
It's Savoir faire and Wikipedia says:-Savoir-faire, a French noun phrase that means being adaptable and adroit, knowing what to do in any situation
The Company adopted a savoir faire strategic plan.
I like a sophisticated man, who has savoir-faire.
"le savoir-faire" (masc., takes no plural mark as it is formed from two verbs) it is the knowledge and skill required to do something correctly; the know-how.
metier - savoir faire
Savvy would be 'malin' or 'futé' in French.