Sorry about the ugly hands and lifeless hair D:
Right... side parting. take 3 strands starting from the parting, plait it downwards [ how you want the shape of the plait to go ] and then add sections of hair only from one side and not the other [as you would do with a french plait].
Only collect hair from one side, yeah?
Can't really explain it D: just ask questions on my Formspring or something if you don't get it~ x