Take the time to try the Single Hand Blackjack 1-40 table game. It's worth the chance to play higher amounts for up to 40 bucks per max level on each hand. Try it for free in demo play too. Even if you don't know the rules, it's hard to pass-up a game of 21 without knowing much else. Here you can have great odds to win when looking for the tell-tale signs of a good hand. If the dealer card shows an Ace, you can take the insurance for a 2:1 payout that's still even money. You may split on any double cards showing with a double-up allowed, except for any aces shown.
A double-up can be taken if you feel your hand is worth the extra wager. The dealer must stand on a strong 17 but hit on anything softer. If you hit 21 (or a blackjack) on the first cards drawn it's a blackjack win. Anything else after the next cards drawn is not considered a blackjack. When both the player and dealer hit blackjack it's a push and you don't lose your initial wager.