fold paper between non-gum edge and center fold.
place well ground weed in the chanel you just created.
use your finger to create a divot in the center so there is less weed in the center than on either end.
between your thumbs and forefingers, gently pinch the paper closed.
gently move your fingers up and down against your thumb until you feel the weed begin to roll, you will feel when this happens.
roll the paper up so the non-gummed side just covers the weed.
pinch/fold the gummed side over the top and roll your forefingers down your thumbsuntil you see the gummed edge.
lick the gummed edge and roll it to adhere by rolling your forefingers down your thumb again.
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use use the tensile strength of the paper to make the joint tight, too much force and the paper rips, not enough and the joint won't roll.
get some weed and a pack of papers and practice. rip open the joints you roll and roll till you get it right.