RIGHT CLICK on a character that you know and ask him or her to duel, but do not kill each other. After that, go hunt monsters. If you get killed, your experience will not decrease. Instead, you will be counted as losing to your dueling partner.
To get 250 extra coins in the beginner villages, first collect about twenty Flying Pupu Wings (when the NPC asks you to collect five of them). When you return, instead of giving you another pair of pants he will give you 250 gold.