Hurro, all you need is a link to an expensive enchant (I.e Mongoose/Executioner), and a level 70 (preferably scammed).
Anyways you advertise in trade that you're enchanting *so called enchant*, preferably mongoose or executioner as the mats are worth a lot more gold than most (usually around 500g total). Or you could just wait till someone asks for an enchanter then whisper them.
Anyways for enchants to work the enchanter needs the materials in their bag, so yeah, you tell them to give you the materials for the enchant, which they will do if you provide them a link to the enchant.
You click accept, and BAM baibai sucka free gold/mats for me lawl.
Yes I realise this isn't complicated or anything, and yes, it's really quiet common sense, but I'm yet to see anyone do it so yeah, come on people pick up the pace!