Palm a halfpenny in your right hand and ask a friend (be sure he _is_
your friend) to lend you a shilling. Pick up a glass, invert it, and
place the borrowed shilling on its bottom. Then ask your friend whether
the coin is on the top or bottom of the tumbler. He will naturally look
surprised at such a question; and you then say,--"Ah, I see you know the
trick." Slide the shilling off the glass into your right hand, and as
your friend holds out his hand to receive it back, drop the concealed
halfpenny into it. The chances are ten to one that he will place the
coin in his pocket without glancing at it. Unless you really desire to
swindle your friend out of elevenpence halfpenny you will, of course,
explain to him how he has been "had."