Research the English courses or lessons available, based on your current English proficiency, comprehension and vocabulary.
Apply to your chosen school and inquire about any necessary United States student visas you may need before arriving in Hawaii. Wait for a final decision about the visa from United States Immigration before proceeding to study in Hawaii.
Register for specific classes according to your needs, whether you are learning for business, to pass the International English Language Testing System or just for everyday conversation and traveling.
Carry a portable English dictionary that translates words from your native language. Use the dictionary each time you come across something for which you don't know the English word. Pronounce the word aloud as you see it in the dictionary and once more while looking at the thing or action you have just translated.
Practice every day and in every possible situation. Explore Hawaii and strike up conversation with any English-speaking tour guides, vendors, waiters and tourists you come across. Arrange to meet fellow students outside of class and uphold a strict English-only rule while you carry on conversation.
Buy one or two local magazines or newspapers each week and read them cover-to-cover, even the advertisements. Use your dictionary to look up the new words you come across and pair the text with their accompanying images for a comprehensive and thorough lesson.
Practice your written English by composing letters or postcards to send home to friends and family. Write about your life and travels in Hawaii and be sure to include some of the newest words you've learned. Provide a translation in your native language for those who do not know English.