suave

Courteous and elegant; gracious and sophisticated.

Soothingly agreeable; pleasant; mollifying; bland: used of persons or things: as, a suave diplomatist; suave politeness.

Sweet; pleasant; delightful; gracious or agreeable in manner; bland.

Charming, confident and elegant.

Sweet talk.

smoothly agreeable and courteous with a degree of sophistication

having a sophisticated charm