Gather a button, needle, thread, scissors, and fabric marker
Cut 18–24 inches of thread
Thread the needle
Tie a knot at the end of the thread
Mark the button placement on the fabric
Place the button on the mark
Push the needle up through the fabric and one buttonhole
Pull the thread until the knot catches
Push the needle down through the opposite buttonhole
Repeat several times through each pair of holes
Leave a small gap between the button and fabric
Wrap the thread around the stitches under the button several times
Push the needle to the back of the fabric
Tie a secure knot
Trim the excess thread