The adjective affable means someone who is pleasant, friendly, and easy to talk to.
Synonyms are amiable, approachable, genial, or gracious.
The word origins from Old French (14th century) affable meaning “benign, approachable” and Latin affabilis meaning “approachable, courteous, kind, friendly”, literally “who can be (easily) spoken to”. It comes from affari meaning “to speak to”, from ad meaning “to” plus fari meaning “to speak”.
Seth is an affable guy, everybody loves him!
That politician is known for his affable personality.
The boss greeted her in the most affable manner.