No saving "for good"

I promise I was NOT saving this pristine pile of Pan Pastels "for good". 

My beloved sister gave them to me for my birthday and frankly I m not quite sure WHAT to do with them.  I am not worried about ruining them per se, but so much of what I do is "wet work" I am concerned about turning them to mud.

The directions say "use as other".  Not very helpful.  We will see.  Any hints from you would be helpful!