gesture vs reaction

gesture

noun
  • An act or a remark that serves as a formality or as a sign of attitude. 

  • A motion made with a pointing device, or on a touchscreen, that is recognised by the system as a command. 

  • A motion of the limbs or body, especially one made to emphasize speech. 

verb
  • To make a gesture or gestures. 

  • To accompany or illustrate with gesture or action. 

  • To express something by a gesture or gestures. 

reaction

noun
  • An action or statement in response to a stimulus or other event. 

  • A transformation in which one or more substances is converted into another by combination or decomposition. 

  • An icon or emoji appended to a posted message by a user to express their feeling about it. 

  • Reactionary politics; a period in which reactionary thought or politics is resurgent or dominant. 

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