After reaching level 45 you can start blackjacking. There are three types of blackjack in Old School Runescape - Oak, Willow and RuneScape gold Maple Blackjacks. Each of them can also be made in one of three different specializations offensive, defensive or just the normal. It's not what you should focus on since while training all of the specializations will be fine. Just make sure you're using the maple because this is the most effective. Shopping on the Grand Exchange will be the fastest way to obtain the item. You could also play the first part of Rogue Trader minigame which also provides rewards.
After you've obtained the skill of blackjack, you'll be able to play it. As mentioned before, blackjacking is knocking your opponent out and then stealing his identity (twice) and then repeating the procedure to gain the experience. Simply you need to right click on your opponent to trigger the knockout , then right click again to steal his money in the event that he is unconscious.
Because in OSRS bandits are dazed only for 3 seconds, you have to grab them as quickly as you can. Failing to do so twice in a short time will result in being arrested. It's a five second stuns and damages. From time to time bandits will also want to take revenge on you. This results in the message from they "im going to kill you for that" and eventually them attacking you. This is averted with the right steps.
When a bandit uses the words that are mentioned above, all you need to do is attempt another knockout. Because the time between the sending of rs 2007 gold a message and the attack is very short another knockout is required right following the text. If you can manage to turn your opponent into unconsciousness, it is recommended to use the pickpocket two times whenever you can. Repeat this procedure to gain and gain experience.