To begin knitting with two circulars, start with the stitches that were cast on last, just as you would with any other kind of knitting.
The only trick to knitting with two circular needles is that you work the needles on one end of the circular needle with the needle that is on the other end of that same circular needle, as pictured.
Continue knitting until you have worked all the stitches on the first needle. These stitches will now be on the opposite end of that same needle. To make it easier to work the second set, slide the worked stitches down onto the needle's cable.
