With regards to the last point, there's actual research to back this up: #3 with the headline "Directional Cues" https://blog.kissmetrics.com/eye-tracking-studi

With regards to the last point, there's actual research to back this up: #3 with the headline "Directional Cues" https://blog.kissmetrics.com/eye-tracking-studies/ https://blog.kissmetrics.com/eye-tracking-studies/ Also, looking down and away from another person is not confidence inspiring. I don't think I need to cite research in order to point that out.