Making a hair weaving closure is usually done on the crown area of the head, but closures can be purchased at many beauty supply stores. See how to create a weave enclosure with helpful advice from a certified hairstylist in this free video on ethnic care.
I will now demonstrate a hair weave enclosure. Most enclosures are in the crown area of your head and to braid or to prepare for a closure section the hair off in an area after braiding the entire head as to where you want the closure to be and then you will braid your hair around in a circle until that area is completely closed taking a smaller section. As I demonstrated how to braid before in another video, I'm just going to whiz through this. Closures can be bought so you don't necessarily have to make a closure yourself, you can do so but I like to buy them because it's a lot easier. So once you are done braiding that section I would suggest braiding the hair all the way down or close to the ends and then sew your hair down in a circular pattern until it is secure and once it is secure apply your closure and sew it on to your section.