Things You'll Need
Instructions
Mark off, on your detective notepad, the cards that you hold in your hand.
Put a person's initials next to the card he shows you when you ask for a clue. For example, suppose that player A shows you the knife. Mark his initials next to that card.
Write down the initials of the person who shows another person a card when you're sure which card it is. For example, if a player asks someone for the knife and Professor Plum in the kitchen, player C shows a clue and you already know that A has the knife and B has the professor, then you know that player C has the kitchen.
Remember (or mark off) the cards that you show to each player. If a player forgets and asks you for the same card twice along with another card you hold, show her the card you previously showed her.
Keep a poker face. Be mysterious about which cards you hold and don't hold.