Magic Trick

Last night, my girl showed me a trick that she'd mastered after she finished doing her homework. She presented to me a cup and two coins. Then she put the coins into the cup. Hey, presto! She turned the cup upside down and the coins disappeared. I pretent not to see through it and praised her beamingly. She was eager to let me know the secret. She hid a magnet at the bottom of the cup which attracted the coins. I remembered that she became interested in magics ever since she watched magic shows by famous magicians such as David Copperfield online.