Sometimes we can see some mental states: Comment on "Seeing mental states: An experimental strategy for measuring the observability of other minds" by Cristina Becchio, Atesh Koul, Caterina Asuini, Cesare Bertone, and Andrew Cavallo
Phys Life Rev. 2018 Mar:24:88-90.
doi: 10.1016/j.plrev.2017.11.017.
Epub 2017 Nov 16.