conceal vs grandstand

conceal

verb
  • To hide something from view or from public knowledge, to try to keep something secret. 

grandstand

verb
  • To behave dramatically or showily to impress an audience or observers; to pander to a crowd. 

noun
  • The audience at a public event. 

  • The seating area at a stadium or arena; the bleachers. 

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