I have got sum hair extensions and ive been told i have to sew the hair on to clips but how do i do

Your best bet is to go to a beauty school in your area and ask what you need to do. The students can either show you what you need to do or do it for you for a small fee. Always leave a tip, even just a dollar :)

I have got sum hair extensions and ive been told i have to sew the hair on to clips but how do i do that?

You don't have to sew them on. Usually if your getting the clip-on extensions, they come sewn together.