Cards must be kept above the table at all times so the back of the cards is visible to the dealer and the other players. The first basic rule is protecting your cards but not hiding them. Smoking is not typically permitted in the poker room, but it is allowed on the rest of the gaming floor. Similar to the Caesars Palace Casino, all players must be at least 21 years old to be in accordance with Nevada law. Las Vegas poker rooms have some specific etiquette every guest should know before sitting at the table.