Handling "Should you double blackjack?" well means going past the printed rules. Blackjack rules fit on a card, but the game at a real table carries habits that the card leaves out. Players meet the dealer one hand at a time, cards are dealt face up or down by house rule, and every decision, from standing to doubling, has a best answer. Knowing the rules for beginners and the etiquette around them is most of what separates a calm session from a muddled one.
Blackjack is partly strategy and partly luck. Luck decides the cards; strategy decides what happens with them, and basic strategy, a chart of the best play for every hand against every dealer card, cuts the house edge to around half a percent. That is the closest thing to a way to beat the dealer in blackjack: not winning more hands, but losing less on each. Players should double on eleven against most dealer cards, and on ten when the dealer shows a lower card.
Blackjack is easy to play at home with a single deck and a friend taking the dealer's role. Playing by yourself works too, with practice apps that deal against a virtual dealer. Whether it is illegal to play blackjack at home for money depends on local law, which often allows private games without a house cut and forbids running one as a business. For beginners, home practice is the cheapest place to learn the rules and the basic strategy chart before sitting at a live table.
Quick answers
What happens when dealer and player both have blackjack?
The hand is a push: neither side wins, and the player's stake is returned in full.
Why do blackjack players use hand signals?
Cameras above the table record gestures rather than words, so a tap on the felt asks for a card and a wave stands, protecting both sides in disputes.
Are blackjack side bets worth playing?
Wagers beside the main bet, such as one on a pair in the first two cards, pay well yet cost much more over time, and most strategy guides recommend leaving them alone.
What does calling for a monkey mean at blackjack?
Players shout monkey when hoping for a ten valued card; the call is a superstition borrowed from table slang and has no effect on the next card.