Kiss is when you ink up a stamp, preferably a chunky image rather than thin delicate lines, then either press a clean or different coloured inked pattern stamp on to it. This either gives you a multi colour effect or you get a pale pattern on a darker image.

Rocknroll is where you ink the stamp in one colour then roll just the edges of them stamp onto a different colour ink pad. Best to do light first with otherwise you'll get a dark patch on the lighter inkpad.