It's the font style that makes it look special. If you have a word program on your computer, you will have a lot of basic fonts that will give you different styles to experiment with. If you have a color printer, it's fun to try different colors.
Just try it out, using regular computer printer paper, until you find the style and size of font you want. Then you can print it on your nice cardstock.
Another thing I love to do is print on vellum. You can put it inside your card with the verse or saying, or layer it over your card so the stamped impression shows through. Be careful, though, the vellum smear if you don't let it sit and dry for a few minutes.
Good luck and let us know if you need any help!
Alicia