To continue the picot bind off, slip that one stitch that's now on the right hand needle pack onto the left hand needle as if to purl. Cast on the same number of stitches you did at the beginning and then bind off the same number of stitches again.
Continue in this manner until you have worked all the way across the row. When you're down to just one stitch on the right hand needle, cut the yarn and pull it through the final loop as usual.
There are many ways to change the look of a picot edge. Using smaller needles or casting on fewer stitches will make your points smaller, while casting on more stitches make them bigger. You might want to experiment on a swatch to decide what look you like for a particular project.
