I think the type of casino games played can differentiate between novice and professional players. Novice players are generally drawn to easy-to-learn games with straightforward rules, such as slot machines or simple card games like blackjack or baccarat. On the other hand, professional players tend to favor games that require more skill and strategy, such as poker or craps. These games require a deeper understanding of the rules, as well as a nuanced understanding of probabilities and betting strategies.