Set aside a time every day to learn Portuguese. An hour is ideal, but if some days you cannot commit that much time, practice for 20 minutes. It is important to practice every day to reinforce what you have learned.
Choose a learning method. A visual learner may learn best by watching a Portuguese television shows on a website like YouTube and then learning grammar afterward. Others learn best from a language website that offers free basic lessons like easyportuguese.com or an interactive language program like Rosetta Stone.
Learn the basics rules of the language. Watching Portuguese television shows might be fun, but you need to learn the basic grammar, vocabulary, and pronunciation as well.
Be aware of rules for conjugating verbs depending on the tense, mood (indicative, subjunctive, imperative) and the subject (I, you, he/she, we, you formal, they). For pronunciation remember that vowels require a nasal sound when there is a tilde (~) symbol or are followed with a m or n.
Sign up for an online program like language-exchanges.org, which provides a free directory for native language speakers via Skype. Speaking with a native Portuguese speaker is important real-world training to become fluent in the language.