“…Autonomous use of the left arm is also emphasized, as is interruption of movement and cuts, as well as general body attitude and facial expressiveness (including eye contact), and the plasticity of gesture according to the sound to be transmitted. All these technical gestures have been approached by different authors and researchers from different points of view (see Bodnar, 2013; Bonshor, 2017; Chaffin, 2011; Colson, 2012; Green, 1987; Johnson, Fredrickson, Achey, & Gentry, 2003; Lorenzo de Reizabal & Benito, 2018; Mathers, 2009; Silvey, 2013; Silvey & Major, 2014).…”