Props: A pen, 4 different articles.
MAGIC:
The best way to achieve a reputation as a magician is by performing mental tricks on the spur of the moment, without any special apparatus. Here is a good mental trick in that category. While you go out of the room, someone touches one of the four articles placed in a row on a table. Then you are asked to re-enter the room. When you return to the room, you explain that being psychic, you can touch the same article touched by the spectator. Close your eyes, mutter the magic word ' Zee Boom Ba' and touch one article. Of course, everybody says 'you are right.'
SECRET:
Mental tricks depend on presentation. The methods are usually simple and well-concealed. In this trick, you have an accomplice sitting with your friends. He will give you the clue through his pen which he very casually puts on his book. When you re-enter the room you glance at the position of the pen, which indicates the secret. For example, if the spectator touches the first article, your assistant puts the pen on the book in such a way that the cap will be towards his right and so on. Remember, you have to choose an honest accomplice, otherwise he may disappear when you re-enter the room!