Listen to music and try to translate the songs , read books and magazines as well , watch subtitled movies. :)

I am not an expert but I can recommend you read and copy news texts

Unfortunately, I feel the premise in your question is somewhat flawed. I don't believe there is any one "easy" trick or hack when learning a new language. The answers provided here are spot on. If you consistently apply them you will learn your new language without fail.

The easiest way is to find speakers of the language. Of course, if you see the other speaker making errors, then avoid that person. He/she can't help you (and unfortunately, there are a lot of people online who claim to be advanced speakers of English, but have obviously learnt it only to a pre-intermediate/intermediate level). Get a second opinion from a native speaker if you're not sure a non-native's level is actually good. The other thing is, you need to find someone who can guide you. This means someone with patience, and who knows how to express themselves so you can understand. So "just chat with anyone" has its limitations. I have found this out the hard way. For the rest of your time, of course use it to read, listen and practice.

you can study books til you are old and grey haired and still not learn english. The best way is to practice speaking and listening. Get on YouTube and search for English lessons and then practice them with a teacher on here. Having conversations with English speakers is the best way to learn