You can't see his face because the mask covers it, but as you walk past him on your way out you notice his hands there.
He has an ugly face, so he wears a mask to prevent you from seeing it.
mnli hypothesis: He has an ugly face, so he wears a mask to prevent you from seeing it. premise: You can't see his face because the mask covers it, but as you walk past him on your way out you notice his hands there.