This a great illusion by Humberto Machado. Can you see the mad and sad face in the illustration?
Feel free to leave clues for those struggling to see each face.
Richard Wiseman
Quirky mind stuff
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This a great illusion by Humberto Machado. Can you see the mad and sad face in the illustration?
Feel free to leave clues for those struggling to see each face.
Cool. However I see that the mad face has an eyeball hanging off its head.
I wondered about the extra eyeball too, then it morphed into an ear!
That’s why he is mad
Agreed drsuzanne. But the ear was so weird looking that when I looked at it straight on the illusion was destroyed.
Masked Twit: Maybe it’s a tumor
I can only see the mad face if I cover up that eye, and even then, the mouth looks wrong…
Agreed. The eyebrow it the real killer.
It took me ages to get this illusion. Anyway that right eyeball can be perceive as an earring and it makes sense then. Well at least for me.
The sad is more dominant. The mad/angry takes a wee bit of effort, a little obscuring reduces said dominance.
The big noses will help.
Helps if you cover up the right hand side of the face
Can only see the sad face.
bottom right strips of white are the mouth
Thought that too first, but it’s not… The mad face was hard to see for me too. Cover up the right eye and try to make the sad face left eye into a right eye. Choose the “left nose”. The mouth is still the same mouth. The mouth is a bit skewed from the rest of the face.
Oh wait, misunderstood what you said. Ignore the sentence: “Thought that too first, but it’s not…”
Only see the sad face. Need more of a clue, I guess, to see the mad face.
Cover the right eyeball with your finger and look at it side on.
Even though I know *how* to see the mad face, I can only see it for a fraction of a second before I see the sad face again.
same. I have to cover up the right side of the face to be able to see the mad face for any length of time.
I can’t see the mad face…. I try and retry, but nothing….
…. Someone said eyeball? Noise? I can’t. 
Yeah! Finally I can see it! the mad face focus view to the left side.
The sad face is massively more dominant, so much so that you need to obscure part of the drawing to see the angry face, so it’s not a ‘true’ illusion. Nice drawing though.
to find the mad face
Half of his face is in shadow.
look at the upper circle on the left hand side. This is his right eye. The black white divide running down from this circle is the edge of his nose. Both sad and mad have the same mouth.
Can see both, but echo comments above that sad face is much more dominant. I found leaning back to get a bit more distance helpful in seeing the mad face for the first time, and it can be fleeting.
Focus on the nose shape to centre left (it is the mad face’s nose). Also, covering up the sad face’s left eye (the right side as you look at it) really helps too.
Oh, this is a clever one
The sad face is, to me, by far the clearest: it took a while, maybe half a minute, to see the angry face, and I might not have seen it, had it not been suggested. Maybe the position of the mouth, if moved slightly to the left, would improve the illusion; but it still works well and these types of images are always intriguing (so why do we see one or the other and not both at once?) 
Hint: the little curlicue on the left is important
So what does the abilty to see either or both mean about oneself? I’dlike to know before I admit to seeing any… lol
Let’s face it, it’s not a great one.
Indeed. It’s no Rubin’s vase.
Cover up the sad right eye and nose with your thumb to see the angry face. Not sure where those bits fit in with the angry face.
This is quite alarming. When we are invaded by aliens with 3 eyes we may not be able to read their expressions correctly.
The sad face is way more dominant to me. Can only see the mad face if I unfocus – like trying to see a Magic Eye picture
I found the sad face to be much easier to see…even when I saw the mad face, it was hard to not see the sad face unless I covered up the right most eye/ear
I really can’t see the mad face unless I cover up half of the sad face. It was quite a struggle to find it, even when I figured out where it would have to be.
Okay I suppose, but find I have to work the mad-face everytime…
Twisted!
aha – found it!!! the one half black one half white!!!
Took me about ten seconds to see the angry face. Not a very good illusion…
Sad face is easy, immediately saw that. The angry one I had to cover the right side in order to see it right. that ear just doesn’t stay an ear–it keeps turning back into an eye, which pops the sad face up again. And the mad mouth doesn’t work very well at all.
If you look at it upside-down, it looks like a bunny with a weird hat.
Not everyone will need to obscure part of the picture. I can see it without doing that
The mad face looks a bit Picassoesque to me. I have to reach a long way to see it.
It took me about half a minute to see the mad face the extra eye is very confusing but the BIG NOSE is the key.