gesticulation

/G AH0 S T IH1 K Y AH0 L EY1 SH AH0 N/
noun
  1. 1

    The act of gesticulating, or making gestures to aid expression of thoughts, sentiments or passion.

  2. 2

    A gesture; a motion of the body or limbs when speaking, or in representing action or passion, and enforcing arguments and sentiments.

  3. 3

    An odd or fanciful motion.

Source: https://en.wiktionary.org/wiki/gesticulation