Knowing foreign languages is great. first of all we must know our own native language. if we know it, the foreign languages' grammar will be very easy to learn. we must read a lot of articles, books and newspapers in the language which we want to learn. learning the words is the most important thing in this way. you must find the easy way to learn the words. it is up to you how to learn them. While you learning yo must use them in the same time. I mean to speak in that language. you can watch cartoons, news and cinemas too. it is interesting to leran foreign language. good luck