Long story: At first I thought it was bogus. Particularly because of the words used to “label” each type of person. And I only saw it in one direction.
Won’t say which.
After some time I revisited the site and now I can easily make it rotate in which ever way I want by focusing on a specific part and visualizing it moving in a that direction. I guess we can all learn.
Short story: I can see it both ways too. Tilting your head does help.