Cheating at a poker game can ruin your reputation. However, there are some ways you can cheat and win at poker without breaking any rules. These include using marked cards, which have hidden marks that you can only see with special equipment. These marks can reveal the suit or number of the card to you before the dealer deals the hand. This can help you decide whether to call a bluff, or fold your hands.
The most popular way of cheating in poker is by using invisible ink-marked cards. These cards have a message on the back which is invisible to human eyes, but visible through contact lenses or infrared glasses. This can help you see the cards that your opponents have before they are dealt and decide when to bet.
Wireless cameras are another common cheating tool in poker. These devices are small, compact and can be hard to spot. They can be hidden in things like a watch or car key, and they can communicate with the cheater through a small speaker or an audio earpiece.
You can also buy a poker analyzer and scanner, which can read the barcode on each side of a card. This device will send the information to your tablet or mobile phone, which you can use to analyze the hand. This can give a huge advantage over your opponents. However, the person running the games may be aware of this.