A card game?

Question

one of my friend's friend tells the number of the card without looking at the card, how this is done?

i placed several cards on the table invertyed so that the numbers were not visible but he touched the cards and told me one by oone the numbers on each card

plaese tell me if possible how this is done, as that person denied to tell me about how to do it thanks in advance

Answer 1

Bring your own deck of cards and see if he can do it.  He is probably using a trick deck.

Answer 2

I agree with hoostar. I used to have a deck of cards that looked normal but had little differences on the back that could tell me the suit and card