The One Hand Knot
This knot is very simple to make. Hold the handkerchief, bent double, across the right hand ([Fig. 2]). Now, suddenly drop the hand, letting the fingers pass over the end, A, and catch the end, B, at the point, C, between the first and second fingers. Let the remainder of the handkerchief slip off the hand, giving it a sharp flick, which will tighten the knot already loosely formed.
Practice constantly until the whole movement can be done very rapidly. To the spectators it will appear as if you have suddenly flicked the handkerchief into a knot, and the effect will be striking.