With your index finger and thumb, thread the needle through the loop and tie a knot at the end of the thread. Place the button where it should go. From the bottom side of the fabric, bring your needle up through the hole of the button and pull the thread tight. Bring the needle down through the opposite hole of the button and continue this pattern until the button is tight. When you pull the needle through the bottom for the last time. Tie the thread off in a knot.