“…For example, when studying visual or perceptual joint attention and visual synchronisation in dyads (see, e.g. Liu et al, 2021;Olsen, Aleven, & Rummel, 2017;Schneider & Pea, 2013, 2014Schneider et al, 2016Schneider et al, , 2018, in which the object of attention is regarded as external, gaze can display alignment with the partners. In their dual eye-tracking study in a remote setting, Pea (2013, 2014) found that, when the participants could see the gaze of their partner, more visual joint attention (i.e.…”