With professionals, you can easily have extensions woven into your hair. But, this method needs hundreds of dollars. In general, you can sew the tracks by yourself. Here’s how to use a hair weaving needle.
Braid hair into cornrows to prepare your hair for weaving. You can do this in 10 to 12 small braids straight back; in zigzags from one side of the head to the other; or in a circular design.
Choose a color of hair-weaving thread that blends well with your natural hair, and then use it to thread the needle. Use your tongue to wet the tip of the thread, and then carefully slide it through the eye of the needle.
Pull thread through the needle about 2 inches. Cut the thread on the other end point which is about 12 inches.
Tie the end of the thread into two or three knots, one atop the other, to make one big knot.
Hold up the end of the first track onto the beginning of the braid you’ll be sewing it to. Pass the needle through the seam of the hair and all the way through the braid. Once the knot stops the thread from going any further, pull the needle. Don’t stick the scalp with the needle.
Around the front of the track’s seam, wrap the thread. Then, slide it through seam of the hair again, this time about 2 or 3 centimeters over from the last entry point. After that, pull it again all the way through the braid and out again.
When you reach the desired end of that track, cut the track and tie the thread into a knot.
Operate the next track, as the same way. And continue this way until you have made a head full of beautiful hair.