Loop the needle and thread up and down through the fabric and the first diagonal pair of holes two to three times, ending on the backside.

Keep the tension consistent, avoiding tight stitches and maintaining some slack.

Repeat the process with the remaining two holes, creating an "X" pattern on the top of the button.

Finish by pulling the needle through to the backside of the fabric.

The backside will look like a small collection of stitches, often making an "X" or an asterisk shape.