For the vanish, the tip is already in the left fist. The handkerchief or cigarette is pressed into the tip with the fingers and then finally the right thumb, which comes quickly out of the hand with the tip on, and the object inside, between the tip and thumb. While the audience is looking at the fist, the performer has chance to misdirect and dump the tip and contents in a pocket, perhaps under cover of putting the hand in the pocket to obtain some "magic dust" to sprinkle on the left fist. Alternatively, the tip may be kept on the thumb for an indeterminate amount of time, using techniques of misdirection and shading to keep it invisible to the audience.