For this look you are going to create a fishtail plait. First, let the hair fall into a natural parting and take a piece of hair at the front of the head at the parting and split in two.
For the piece of hair at the top (nearer the parting) each time you go to split it in half you want to first take another small section of hair from the parting and join it to this piece of hair, then split it in two (so you have three pieces of hair) passing the top piece (nearer the parting) over the middle piece and then under to join to the original piece at the bottom nearer your forehead. Simple...
For the piece nearer your forehead, split this in two (so again you have three pieces of hair), and wrap the lower piece of hair over the middle piece the upper piece then under to join the piece of hair at the top. Easy, right?