The Smile in the Mirror

Get yourself two mirrors, preferably one big enough to see your whole body. Now when you're doing this ritual, don't try to record evidence of it with a recording device because it won't work. But, you see I can prove to you that this is real. Because this ritual doesn't require much out of you.

Put the two mirrors between you, facing each other so that they reflect off one another. Adjust the space between the two mirrors so you can see as many reflections as possible.

Now stare at yourself through one of mirrors but don't smile. Eventually after some staring you will realize that one of your reflections will be smiling.

Now the ritual is done. Wherever you go, when you pass by a reflection of yourself, you will notice that your reflection will be smiling. If you're a quiet man like me you'll dismiss it. But one day it will get to you and you will realize that there is nothing wrong with your reflection.

During the ritual you brought something to our dimension and now it's with you forever.

Whenever you see yourself in a reflection smiling for no reason whatsoever, don't be confused.

It's just the man from the other dimension smiling at you.