Much of the trading in RuneScape is done via the Grand Exchange. Go there, and talk to the Grand Exchange Tutor, to get started.
It is also possible to right-click on a player, select "Trade", then exchange items with that player.
Chat with our AI personalities
You trade another player. Put all the items you want to dupe ( over 100m ) in the trade screen. Both players click accept then you logout. Login and you still have your items whilist the other player does also. Enjoy.
While on RuneScape PVP worlds, if you die, you only lose the items you are carrying, not those in your bank, never in RuneScape will a death directly affect your banked items.
Only items obtained through quests.
There is no way to duplicate items in Runescape. Although there was a bug once which did allow a person to duplicate party hats, this was quickly fixed.
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