Players can effectively teach the basics of blackjack to newcomers by starting with a clear explanation of the game's objective, which is to beat the dealer by having a hand value closer to 21 without exceeding it. Demonstrating how cards are valued and the significance of the dealer's upcard can help newcomers grasp the fundamental concepts. Practical examples and role-playing scenarios allow learners to experience gameplay firsthand, reinforcing their understanding. Encouraging questions and discussions can clarify any confusion and build confidence.