Thread your needle and double the thread over, then tie a knot at the end of the tails.
Stitch through one of your pieces of fabric and affix it to the glove fingertip over the pencil mark with a whip stitch.
Be careful not to stitch the glove finger closed! Check periodically to be sure your stitches only pierce the intended layer.
Stitch halfway around the pocket, tucking the seam allowance in a you go.