In a face-down card game, whether you can touch the cards typically depends on the rules of the specific game and the casino or house regulations. In many cases, players are allowed to handle their own cards, but it's essential to do so with care and respect for the game. Some casinos may have specific protocols regarding card handling to prevent issues like cheating or accidental misplays. It's best to observe how other players interact with their cards and follow the dealer’s instructions if you're unsure. When in doubt, asking the dealer for clarification is always a good practice.