bonhomie

noun3

1. •
   A friendly, good-natured, pleasant manner; an affable and approachable disposition; friendliness.

   • [T]he unknown Arlo Guthrie takes the stage, ending up in the movie, and – through sheer bonhomie – selling a million copies of Alice's Restaurant. — 2019
2. •
   An atmosphere of friendliness and good cheer.
3. •
   A cheerful remark.