1: One of the most important aspects is the game choice. Don't get into wrong notion that blackjack is a standard game. There are lots of variations of it. Players usually stick to their favorite game, the one that brings them more money. However we don't recommend you to play one and same game all the time. Sometimes it makes perfect sense to try your luck with another type.
2: If you are the type of player that needs a real casino instead an online one - you better secure yourself with a club card. Player's club cards give you lots of privilege. These privileges could decrease your expenses in the casino, which is always favorable. What will a player's club card do for you? It will grant you free meals and maybe a free room on some occasions.
3: If the game doesn't look too bright or if the game requires you to come back another time - you should really stop at 17. But you should remember that this will only work in the case of no low cards appearing on the table yet. Which also means the next low card could be yours which you do not want. You should try various combinations where you can re-split or double down your cards.
4: Always stay in your mind with bets. I know sometimes it seems like the one that bets more wins more but this theory could be false. People make big bets in order to impress others around; they want to make others bet much as well. If you plan to use some kind of Blackjack system, don't make it your Bible. There is no one irresistible method for winning in Blackjack. If such method excisted, then the person that created it would definitely not be selling it to you for a few dollars. Why would they do it? Sounds a good question.
5: The fifth advice would be not to believe those silly stories about counting cards in blackjack as it is never the case. If you are some kind of a math genius, you may try that one for a change but trust me; most of us won't be able to count it up.
Another important note to remember would be not let anybody rush you or tell you how to play. As long as you know exactly what you are doing - you are safe. If you don't trust yourself with cards and you know you can put too much at steak - don't enter the casino.
Know your budget when you play. Don't ever let the casino control your life, you should control it. We wish you good luck with it and hope our advices helped you to know more about the blackjack game.