bonhomie
noun·/ˌbɑː.nəˈmiː/
Genial good humor. An easy, unforced friendliness that puts others at ease without asking anything in return. Bonhomie is warmth without performance, conversation that feels like a shared fire.
His bonhomie wasn't charm so much as genuine ease, as though the world had already been forgiven.
Etymology
Borrowed from French bonhomie, from bon homme “good man.” The phrase is simple, almost plain, and the quality it names is similarly unpretentious: goodness made sociable.
Related Words
genialityfriendly warmth
affabilityapproachableness; slightly more mannered
convivialitygood fellowship, often in company
camaraderiebond of companions; more mutual than ambient