Online chat. The closest thing to speaking for people who don't have the chance to speak English is online chat, as you have to think and respond quickly, and the language is short and informal just like speech.
Record your own voice. For people who don't have much or any correction of pronunciation from a teacher, recording yourself and listening back makes it easier to hear whether you are really making the English sounds that you are trying to or not.
Read a book with lots of dialogue. Opening up books before you buy one and flicking through them to find one with lots of direct dialogue in it has several advantages. If there is less text on the page due to all the speech marks etc, this can make it easier to read and easier to write translations on. Dialogue is also much easier to understand than descriptive parts of a book, and is much more like the language you will want to learn in order to be able to speak English.