For anybody new to photography, or for the odd macro this is an awesome thing to try, it's tricky to master and very time consuming, or at least I seem to end up really in to it. You get some interesting images and results.
If you're a person with shaky hands or clumsy you can buy adapters that'll mount the lens on backwards on the bayonet plate, which makes this significantly easier. Same goes for those with little hands. If you plan to do it a lot then get them, though experiment with lens tilt is quite fun too.
You can read more of my stuff at killerjackalope.com - my newly renovated website.
Step 1: You'll need
A pair of hands
SLR (I've not had the chance to do this with a mirrorless but I can't see it not working.)
Your choice of lens is the big thing here, thankfully your kit lens is probably a great starting point. They tend to have a max aperture of no wider than 3.5 on most. That's a good thing here - your aperture will be wide open at all times as the electronics aren't in touch.
I'm making use of an old canon 28-70 F3.5-4.5 The standard kit lens does well, I just broke mine some time ago, not that I used it much. I say old, the lens is only two months older than me...
You can use a nifty fifty to good effect with this, but it takes a little practice as the depth of field is so tiny. Using old manual aperture lenses with this is great, sadly I've misplaced the minolta 50mm I'd been playing with...