Digital BW, The Print

I received my first 25-sheet pack of HPR from inkjetgoodies today and 
want to give it a try, but I'm having a really hard time telling which 
side is the coated side. Does anyone have a sure-fire way of telling 
which is the coated side? I once think I remember someone saying they 
could always tell by touching the tip of their tongue to each of the 
sides, and whichever side it stuck to most was the coated side. Aside 
from any negative chemical effects (are there any??), does this work? 
Is there a less "distasteful" way to tell which side is coated?

Thanks,
/eddie