For anyone interested:
1) Shows how I section out the hair. Two sections, one about twice the thickness of the other. You'll soon see why.
2) I cross them over at the middle.
3) Then I fold them over in halves so they are looped at the middle.
4) Then I take the two narrow halve and combine the so I end up with three sections.
5) Keeping a firm hold over the middle where the sections are looped over each other and also taking care to keep the three sections I just created separated, I hold up my hair and...
6) ...place that looped over section against the base of my hair. My thumb holds it against the back of my hair while my fingers grip the front of my hair to ensure that the hair is firmly placed at the base.
7) Without loosening the hold of the extension hair at the base of my own hair, I use my fingers to divide my hair into three sections to match the extension hair. Basically the hand that was free pulls out the outer section, then that hand grips the hair and extension hair as in 6 and the other hands sections out the outer section of my own hair on the other side so you end up with three. Making sure the thumb and fingers of one hand are holding the hair firmly at the base at all times is important in being able to start the braid at the base. Then you start braiding holding extension hair sections and braids sections together.
8) Not sure what this was for. Maybe just to show the three sections of my hair but really not relevant to the procedure.
9) This was just to demonstrate how not to hold the hair. If your fingers are too far from the point of crossing over when braiding, you'll have hair sticking out and won't be able to tuck all the hair into the braid.
10) This is a better way to hold and ensure you're getting all hairs caught inside the braid, especially as you get to the end of your own hair.
My advice is to always braid beyond your own hair. I always braid to the end of the extension hair. I think it gives a neater look:
9)