“…Research informed by embodied cognition perspectives (Glenberg, 2010;Glenberg, Witt, & Metcalfe, 2013), including gestures (Goldin-Meadow, Nusbaum, Kelly, & Wagner, 2001;Ping & Goldin-Meadow, 2010) provides numerous examples of this potential synergy. Distinct from gestures, performed mostly using the hands for communicative purposes (Dargue, Sweller, & Jones, 2019;McNeill, 1992), are actions on objects using touch and/or manipulation (Congdon, Kwon, & Levine, 2018). Several lines of research suggest gestures and actions with the index finger are biologically primary.…”