“…The research into how speech and eye gaze are linked lead to a better understanding of the underlying cognitive mechanisms, but also this relation has been studied for practical applications in Educational Science (e.g., Jarodzka et al, 2017), human robot interaction (e.g., Chidambaram et al, 2012;Ham et al, 2015), web-based conferencing (e.g., Ward et al, 2016), and virtual reality (VR) systems (e.g., Garau et al, 2003;Batrinca et al, 2013). Some of those studies hold under operational assumptions such as simulating gaze aversion through head movements alone, conducting research under highly controlled conditions, which does not reflect real-life settings, or encoding just the presence of human speech rather than exhaustive speech analysis.…”