Well, I don't really know what to call it, but you can get gold or items with it.
Get a friend(or someone that you can get to say something really quick)
NOTE: WILL NOT WORK WITH 2 ACCOUNTS UNLESS YOU CAN BE ON BOTH AT ONCE!!
Then get some wrapping paper and wrap up crap item(you know Blacksmith Hammer is always the best!)
Go in Trade Channel and say something like:
[2. Trade] [You]: WTS [Krol Blade]
Then you get...
[Person Buying The Item]: Hey i'll buy the item, how much is it?
[You]: [INSERT PRICE HERE OR SAY YOU WILL TRADE IT FOR ANOTHER ITEM AND LINK THE ITEM FROM AH]
[Buyer]: Ok that is reasonable
[You]: Ok meet me at AH
[Buyer]: Ok im near there
When the person buying the item gets there, have the other person say something like.....
FOR ITEMSSo if you want to scam an item)
When the Buyer gets there you each say(you first though)
[You]: Hold on lemme finish up witht his guy
[Other Person]: Lemme unwrap it really quick
Then the other person will go in AH(You should be right next to one of the AH People already) and find a good item and an item not as good as that one and say something like:
[Other Person]: Man that was a good deal, I got [Good Item Here] for [Item Not As Good Here]
FOR GOLDSo if you want to scam gold)
Well, for this one you don't need to be near AH
Have the person say:
[Other Person]: Wow that was a good deal [Good Item Here] For only [Insert Gold Here]
Probably want the gold just a little less than the item is worth.
Then...
FOR ITEMS:
Say...
[You]: Ok you heard the other guy, right? he had to unwrap it cause I like to wrap it when I give it to people, makes them feel special, lol
[You]: Anyways, (Click trade with the Buyer) ok put in the gold You put in your wrapped item
You both trade, you get money
FOR GOLD:
You should know what to do
HAVE FUN!