Card Tricks with Two Packs

Use two packs, each with a different coloured back. Ask someone from the audience to help you. Tell them to copy you exactly and do whatever you do. Each of you has one pack. Start by both shuffling again. Exchange the cards again, but as you hand them over steal a glance at the bottom card of the pack you are handing over. This, of course, is your 'key' card.

Each of you take a card from your pack, look at it without showing anyone else and replace it on the top of the pack. Cut the pack. Exchange packs again.

As you will realize, your helper's chosen card is now under your key card in the pack in your hand. Let's say it's the Queen of Hearts. Now each of you has to remove the card previously selected from the pack in their hand. So ask your helper to do this and put the card face down on the table without anyone seeing.

Your helper will draw out the Queen of Hearts, but you ignore whatever you had before. Obviously, you use your key card to find the chosen card, and you draw out the Queen of Hearts.

Then, in unison you both turn your cards over to reveal them to be the same. Simple, but extremely effective. You can follow this trick with a similar one called Matching Cards.

Before you start, secretly put a card in your left pocket. Let us say it is the 6 of Hearts from a red pack and that the other pack is blue. Ask your audience to shuffle both packs of cards. Give the red pack to a member of your audience and put the blue one in front of yourself. Ask the person to take a card from the red pack and, without looking at it, slide it across the table to you face down. Take it and put it in your left pocket next to the 6 of Hearts, but making sure the 6 of Hearts is on the outside. Make sure everyone can see that you haven't looked at it.
Then pick up the blue pack, fan it in front of you and pick out the 6 of Hearts. While you are doing so keep looking deep into the eyes of the person helping as if you are trying to get inspiration. Now, slide the blue 6 of Hearts across to him and ask him to put it in his pocket. Don't let anyone see what it is.

You both then put your hands in your left pockets and both bring out the 6 of hearts. You, of course, have left another card hidden in your pocket, but nobody knows that and they will all think you are remarkably clever!