From Guild Wars Wiki
 Game mechanics
Paper covers rock. Rock breaks scissors. Scissors snip paper. The entire sequence takes about 26-28 seconds.
- If the opportunity cost of playing time is ignored, this is the most rewarding way to use your Lunar Tokens. Over a prolonged playing session, a player will gain two rewards for approximately 2 of his tokens. This is in contrast to spending 3 Lunar Tokens for a single Lunar Fortune and 5 for a single Red Gift Bag with the collectors in Shing Jea Monastery.