How to use a wax stamp

Light the wick and with the burning end tilted toward your paper, allow a pool of wax to collect where you'd like your seal.
When the pool of wax is almost the size of a quarter, press the stamp into the center of the pool (if it's hot out, it works best to chill the stamp a bit).
Let the wax cool down for around 20 seconds, or until it has hardened.
Peel back the stamp and admire your handiwork!