New players often struggle with overplaying weak hands, letting emotions influence decisions, and failing to properly manage their bankroll. They might chase unlikely draws, hoping for a miracle card, instead of folding when the odds aren't in their favor. Additionally, many newcomers have difficulty adapting to opponents' strategies, sticking rigidly to their own approach rather than reading the table. Another common error is playing too many hands instead of being selective, leading to unnecessary losses. Effective bluffing can also be a challenge, with beginners either bluffing too frequently or at inappropriate times, making them predictable.