How to Make a Wrapped Knot
The simplest method is something I call a wrapped knot. Here’s how to do it:
Then, use another finger to anchor the top of the loop against your thumb, and slide it down to the end of the thread. That will cause the loop to gather up into a knot. Pull the knot tight. It may take a little practice to get the hang of this technique, but once you do, it’s a quick, secure knot for hand sewing.