affability

noun

The quality of being pleasant and friendly: agreeability, agreeableness, amenity, amiability, amiableness, congeniality, congenialness, cordiality, cordialness, friendliness, geniality, genialness, pleasantness, sociability, sociableness, warmth. See attitude/good attitude/bad attitude/neutral attitude, good/bad.

The noun has one meaning:

Meaning #1: a disposition to be friendly and approachable (easy to talk to)
  Synonyms: affableness, amiability, amiableness, bonhomie, geniality