cross one's fingers vs please

cross one's fingers

verb
  • when wishing for luck, or 

  • when telling a lie (and attempting to escape the moral and other consequence of that lie). 

  • To put the middle finger across the index finger, especially 

please

verb
  • To desire; to will; to be pleased by. 

  • To make happy or satisfy; to give pleasure to. 

adv
  • An expression of annoyance or impatience. 

  • Said as a request to repeat information. 

  • Used to make a polite request. 

  • Used as an affirmative to an offer. 

How often have the words cross one's fingers and please occurred in a corpus of books? (source: Google Ngram Viewer )