I use a walking foot to attach my binding to the back of the quilt. Press the seam then use those red clips to hold the binding on the front. This way as you sew it down you can see the stitch line to follow on the front. It is not perfect and I get off line sometimes but with practice I get better at it. The main thing is to stitch the binding on the seamline exactly. After the quilt is washed it hids alot of mistakes. Be sure your thread matches the fabric.