This is to demonstrate a simple interrupted suture first, with a single knot, and then with a surgeon's knot. So to do that, you want to put your needle about 5 millimeters away from the wound edge, coming up through your incision and back through the other side. This is your single throw. You just put your instrument parallel to your incision and just twist your suture around your instrument once. Grab the end of your suture, create one throw. Repeat the procedure. And have a look at your knot to make sure that it's a proper square knot, and not a granny knot. So you can see, as I tighten this, it's going to form a nice knot. And you can pull the suture up to lock it. And then, you put an extra throw on to make your knot secure. A surgeon's knot is very similar. So again, at least 5 millimeters from your wound edge. You're holding onto the skin to steady the tissue for your needle. So a surgeon's knot is very similar. But you pass your suture material around your instrument once, twice, and grab the end of your suture and bring it down. And then, for the next row, it's just one single throw. And again, you just want to make sure that when you tighten your knot, it's forming a nice square knot and not a granny knot. Bring it up to lock it. And then, put another throw on the end to make your suture secure.