There is no bad way to learn English. All methods are good.

You can learn English by listening to popular songs in English on the radio, and then confronting random strangers on the street to ask what the lyrics mean; you can learn English by reading the advertisements in a magazine, and guessing at what they are trying to get you to buy; you can learn English by becoming an Au Pair in Ireland or Australia; you can learn English by reading a dictionary for one hour before going to bed every night, and trying to make humorous sentences out of each word; you can learn English by taping flashcards to every item in your house with the name of it in English in bright red letters-refrigerator, telephone, microwave oven; you can learn English by getting a job in a pub where most of the clientele are English speakers, or giving tours of Prague to English speakers; you can learn English by choosing a subject you are extremely interested in, like African music or organic gardening, and reading articles about it in English; you can learn English by listening to the BBC and trying to imitate the announcer with the silliest accent, or by watching Sylvester Stallone movies over and over again until you can repeat the lines along with him; you can learn English by reading children's books, trashy romance novels, the plays of William Shakespeare, or the lists of ingredients on boxes and cans in the supermarket; you can learn English by travelling to an English speaking country, but it's a good idea to learn a little bit before you go; you can learn English by finding an English speaking boyfriend or girlfriend; you can learn English, and lose weight at the same time, by refusing to eat any food that you don't know how to say in English; or you can learn English, in a short time and at a reasonable price, by attending classes at Watson's School of English, Budecská 40, Prague 2.