Gesticulate
Gesticulate
Gesticulate /dʒesˈtɪk.jʊ.leɪt/ (verb)
to move your hands and body while speaking, make gestures, wave, air, gesture, signal, beckon, sign, point, indicate:
In my personal experience, people who are used to gesticulating during speaking, act unnaturally while telling lies.
I believe that lack of gesticulation during a speech culminates with monotony.