Add a description of the contents of your gallery, so it will be more visible for other users. Remember that you can also add descriptions to each image.
How to see stereoscpic image in 3D:
(Will not work in thumibnail view)
Slowly cross eyes until the two images on each side merge into a third image in the middle, you should now see in the middle a stereoscopic (3D) image and a 2D image on each side left and right of that steroscopic image .
Hard to focus?
A technique that helps me obtain focus quicker is to hold out your hands about 4 to 6 inches one in front of each eye ,
this way you can only see the left image from the right eye and the right image from the left eye, therefore you only see 1 image in stereoscope much more akin to a viewmaster look.