What I'm about to write must be an act of plagarism. Somewhere out there in the vast intarwebz is a guide that teaches people how to be first rate morons when trying to get their gear enchanted. I say this because there's a (would be) sneaky method being employed by a lot of people on my realm (and I doubt it's new). So to save folks some time searching for this mythical nub guide, I thought I'd paraphrase it here for you.
1) Do a tiny bit of research. You're looking for two specific things.
a) An enchant that gives a very good stat bonus, a really cool glow, or ideally both.
b) An enchant that you cannot possibly afford.
2) Advertise in the Trade channel that you are looking for the enchant you have chosen. Include in the ad that you would like a prospective enchant provider to /w you.
3) When you get a victi...err...enchanter responding to your add (whether or not you've even discussed the price of the enchant yet) ask them to buy the mats for you. Tell them you'll pay them for the mats when they do the enchant. It is very important during this stage that you double check to make absolutely certain you have nowhere near enough gold to pay for the materials.
By this time, you've pretty much assured yourself of Nubhood. But this is WoW, where a grey nub is rolled every minute, green nubs abound in cities and the Barrens, and even blue nubs are easy to come by. No, you want to be the Purple Nub. If epic nubhood is your goal, continue:
4) If the enchanter refuses to buy the mats for you, invest a little time into trying to convince them. Promise them you'll pay them. Make up some excuse about why the enchanter should be the one to buy the mats.
(If the enchanter doesn't refuse, buys the mats, does the enchant and then stands there waiting for you to pay them, you have immediately ascended to epic nubhood. If not, at least try and salvage a good, solid blue ranking).
5) If the enchanter still refuses, become belligerent. Tell him he's ripping you off. Tell him you've had the same enchant done for less than half that price. Call him dirty names. Really work him over as best you can. The longer you can do this, the better your chances of solidifying that blue nub status.
Anyone can be a nub. To be a truly outstanding nub, follow the above recommendations. Nublette virgins will cry themselves to sleep for weeks when they receive word of your exploits, because they know they'll never have anything to offer a nub of your stature. Rejoice in your nubhood. You've earned it.