Even if the vendor shows a weak upcard, like a 5 or 6, stick with your 20 - it’s one of the strongest hands in blackjack. At the start of each hand, you're dealt two cards, with one of the dealer’s cards face up. In some variants, the dealer’s second card is dealt solely after you've accomplished your action. You can choose to attract further cards ('hit') or stick with your present hand ('stand'). When you enter a blackjack game, take a moment to review the betting options and rules to ensure they align with your preferences.