lol!
I don't think somebody can look like a Mason, unless they're wearing the garb.
Well, please ask some experienced traditional Catholic priests and chances are good that they will tell you the following (some priests told me) :
I see a person (for the first time), take a closer look at this person and after some minutes I can tell you with a good chance if that person is Catholic or not.And in many cases they're right. It's safe to say that this experiment works better the older the examined persons are because then the face is more settled, and also priests may recognise the look of the persons in a sharper way than the average John Catholic Doe.
This is no surprise though, because the eyes are the window to the soul. And the part of the face with the eyes shows the most important characteristic of an entire face. (That's why in photos which want to blur the identity of a person, the facial part of the eyes is covered with a black bar.)
Now, when it's possible for sharp observers to tell in many cases from a persons' face if the person belonging to that face is redeemed, it's also possible to recognise persons which are enemies of the Redeemer. Because after some time these persons fighting against their own creator with all means get evil eyes reflecting just their state of soul.
(I would not go so far to say then the person must be a Freemason, but "just" an enemy of Our Lord. Of course we know that the two biggest public enemies of Our Lord are Jєωs and their lackeys the Freemasons.)
Since I know many former Catholics who're Vatican II apostates by now (but were educated in the old Faith), I recognise over the years their typical look which is another category: a very, very sad look. Like their souls knew that they're betraying Our Lord AND their very own salvation. Yes, I actually know this terrible look very well because most people around me have it.
Sometimes it's not so nice to wear these sunglasses which show the true face of the people like in the movie "They live" (1988, John Carpenter).