manner vs mien

manner

noun
  • Characteristic mode of acting or behaving; bearing 

  • The style of writing or thought of an author; the characteristic peculiarity of an artist. 

  • good, polite behaviour 

  • One's customary method of acting; habit. 

  • A certain degree or measure. 

  • Standards of conduct cultured and product of mind. 

  • Mode of action; way of performing or doing anything 

  • Sort; kind; style. 

mien

noun
  • Demeanor; facial expression or attitude, especially one which is intended by its bearer. 

  • A specific facial expression. 

How often have the words manner and mien occurred in a corpus of books? (source: Google Ngram Viewer )