|1] With the background stamp face up, ink the stamp completely by tapping the ink pad on the rubber.|
2] Place the background stamp face up on your stamping surface.
3] Place the card stock on the inked stamp.
4] If the card stock is smaller than the stamp, cover the card stock with a piece of scratch paper.
5] Rub the card stock with smooth, firm strokes, making sure to rub all areas of the stamp and to keep the card stock from sliding.
6] Remove the scratch paper and carefully lift the card stock off the stamp.
Create a multicolored background by applying two or more inks to the background stamp.
From Stampin up.com