Adjectives

(s)amiable, good-humored, good-humoureddisposed to please“an amiable villain with a cocky sidelong grin” (Hal Hinson)
(s)affable, amiable, cordial, genialdiffusing warmth and friendliness“an affable smile”, “an amiable gathering”, “cordial relations”, “a cordial greeting”, “a genial host”