How do street card fortune tellers count your birthday?

This is similar to a poker game called mind reading. The fortune teller asked you to make two choices. You choose a box in the table, and one day in this box is your birthday. Then he chooses one of the cards given to you. This card also has your birthday, only one set of cards has the same date as the box in the chart. There is only one set on the card and one set in the box. ) The same is yours.

When he tells you your birthday, you will win your trust because of what he said, and then you will be confused by his nonsense step by step!