fidget vs squirm

fidget

verb
  • To wiggle or twitch; to move the body, especially the fingers, around nervously or idly. 

  • To cause to fidget; to make uneasy. 

noun
  • A person who fidgets, especially habitually. 

  • A nervous wriggling or twitching motion. 

  • A toy intended to be fidgeted with. 

squirm

verb
  • To twist one's body with snakelike motions. 

  • To twist in discomfort, especially from shame or embarrassment. 

  • To evade a question, an interviewer etc. 

noun
  • A twisting, snakelike movement of the body. 

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