if, if you look in your books page one seven seven, you'll see a beautifully illustrated instruction on how to do it, which you can refer to yourself this evening or later on in the course if you forget but i'm now gonna show you how to do one as well, you, if you want to know it's there for you to look up  you take the bandage and fold it into your narrow fold band  and put it round your leg, you've got something to tie a reef knot round, okay?if you know how to do a reef knot already fine, just do it, if you don't, follow instructions.