CORAL STITCH
The Coral Stitch is a good stitch to use when you want a thin beaded line.
Take a tiny stitch perpendicular to the stitching line, and catch the thread in a loop under the needle as shown.
Hints:
Hold the horizontal part of the stitch with you thumb as you tighten the knot. That way, the stem won't be loose.
See Also:
Zig-Zag Coral Stitch