moue vs mouthing

moue

noun
  • A pout, especially as expressing mock-annoyance or flirtatiousness. 

mouthing

noun
  • Ranting; passionate speech devoid of meaning. 

  • The act of forming a shape with the mouth, especially as part of sign language. 

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