Hi, this is Andrew on behalf of Expert Village.com.
In this next clip I am going to be showing you how to sew on a button to polyester pants. Now the first thing you need to decide is the color of thread you want to use. In this case I chose white just because it is contrasting and you can see the stitching patterns that I will be using. But typically you want to find the color of thread that either matches the color if you are going to show off your stitching pattern or blends into the color if you try to hide the stitch all together. The first thing you want to do when stitching a button onto the pants is you want to start from behind the material not in the front because that is where in the end the stitch is going to be most noticeable.
So you just want to start from behind and you want to thread the needle through the back side of where you originally made your mark. Now once you have the thread through you want to thread it into the back of the button, bring the button down as close as possible to the fabric itself. Then you simply want to sew back through the material and pull it as tight as you possibly can. This will lock the button into place. From here on out you just want to repeat the same pattern starting in the same hole that you originally went through. Then going back through the back of the button again and tightening it as tight as possible and you basically just repeat this again and again until you feel that you have the button on tight enough based on the material you are using. In this case I would repeat maybe five to six times. That should give it enough strength to where it is not going to come undone very easily.