Modern Magic: A Practical Treatise on the Art of Conjuring

In this, as in all other branches of prestidigitation, the student will find it of the greatest possible advantage to practise before a looking-glass. By this means, better than any other, he will be enabled to judge how far his movements succeed in deceiving the eyes of a spectator. One caution may here be given with advantage: the student of legerdemain must learn to perform all necessary movements without looking at his hands, unless for some special reason he desires the spectators to look at them also. In every case, wherever the performer desires his audience to look, his own eyes must take that particular direction; and wherever he desires his audience not to look, he himself must carefully abstain from looking. Let us suppose, for instance, that a person has drawn a card, and has replaced it in the middle of the pack. The performer desires to bring it to the top, for which purpose it is necessary to introduce the little finger above the card in question, and to make the pass, as above described. When the card is replaced in the pack, the eyes of the drawer are naturally directed towards it; and if the performer were himself to look downward at the cards, it would multiply tenfold the chances of detection. He should pause for a moment, and, looking full at the person who drew the card, ask, “You are certain that you will know that card again?” or make any similar observation. As he speaks, a natural impulse will draw the eyes of the audience to his own face, and he may then make the pass without the slight necessary movement attracting the least attention. It is hard to believe, until tested by actual experience, what apparently obvious movements may be executed under the very noses of an audience, if only their attention is diverted at the right moment by a dexterous use of the eye and voice of the operator.