Today I received an email from Dog Trick Academy, with a link to a fascinating doggie optical illusion. Now, as if it isn't enough to have Penny staring, staring, staring, we've got a small paper dog doing the same thing.
It took me ages to realise the trick to making it work is that you fold the dog's face INWARDS. Here are two picture to help.
In the first one, looking from above, you can see the face folded inwards.
In the second, you see that you get the best effect by crouching to look up at the face from below.
The Dog Trick Academy clip on YouTube is better than my one!
And if I had only gone to their site earlier I would have seen how to fold it!
