basicly the process is this:
1) take your paper the normal way you would roll with it (glue on the inside of the edge furthest from you) and turn it upside down. refold it so you have a nice "V" shape to keep the bud/baccy in. basically you are making an inside-out joint. The thinner the paper the better for this (cus you will need to see through it later), but you already knew that.
2) put your stuff inside, and begin to roll as normal (rolling the contents together, adding a roach at the end, etc.)
3) when you begin to roll, tuck the edge of the paper nearest to you (which should have the glue strip facing out) into the joint and keep rolling until you can see that this glue strip has gone ALL THE WAY AROUND. in other words, you have tucked it, then you have rolled the joint 1 complete turn.
4) you should be able to see the edge of the paper (where the glue strip is) through the other layer of paper on top of it. lick the joint up and down on top of the glue strip (which is under the paper you are licking). the water will soak through the top paper and into the glue and, after being smoothed down with your finger once or twice, ...