i had it and my sister did it you put the water on the rub-on sheet and you stick it on the paper you want to rub it on and rub it with the stick
use a rubber (a very strong one!) and rub and rub and rub..........
Usually, a little stick comes with it, if there isn't one, your can use a popsicle stick or something. You put the rub-on paper with whatever you want to run-on, where you want to rub it on, (make sure it isn't a mirror image to you), then rub the end of the Popsicle stick on the certain rub-on, and rub it for about 30 seconds evenly. It should be done!!!
One method - use 'wet and dry' paper with water
There is friction between the eraser and the paper.:)
The paper becomes semi-transparent.
Rub the wax of a candle over the paper, or use a beeswax leather sealer or similar. Tape or glue that is not soluble in water will also do an ok job
it is called smudging i use that technique all the time when I'm drawing
just rub and rub violently! Use your finger to rub and rub! rub and rub! do it, now!
you can use tin foil or crisco a plate/tray DO NOT leave to much crisco though make sure to rub it in
DON'T USE WATER!!!!!! use a dry cloth and rub gently DO NOT RUB HARD!!! if you rub hard it will disintergrate!!!!!
you rub a piece of sand paper on it
rubs Or rub's depending on how you use it....