Dave knots are often used in fly fishing. For small fish, fishermen choose the best method. The advantage of Dave knot is that when your fishing line breaks the line, your fishing line will return to the normal line.
Thread the line through the eye of the fly hook.
Form a loose overhand knot with the end of the line.
Bring the end of the line back over and through the overhand knot and the hook itself.
Tighten the knot by pulling on the end of the line.