Listen to a variety of rap music daily. Take the time to explore a range of artists -- male, female, young and old. Take in the variety of beats and lyrical patterns of each artist. Use the music to inspire your own range and lyrical possibilities.
Carry a notepad and pencil with your everywhere you go. Think of an issue near and dear to your heart, including politics, being a strong role model or love. Specify the issue to make it personal to you: supporting a particular political candidate, for instance, showing courage for your younger siblings or telling how you fell in love with your girlfriend. Begin thinking of the issue in lyrical and poetic terms. Write down rhymes and phrases that express your feelings for the issue onto your notepad.
Practice putting a beat to your lyrics. Experiment by speeding the lyrics up, slowing them down or changing the pitch and intensity of your voice. Speak the beat in your intended rhythm. Change lyrics as necessary to fit beat and chorus patterns.
Study a dictionary and thesaurus daily. Memorize unfamiliar words and begin incorporating them into your daily vocabulary. Building a database of language in your mind will help expand your lyrical expression.
Play with rhyming schemes. Stretch the phrasing of words or the enunciation to bend the words to suite your artistic expression. Start with one word: "storage," for example. Try to put together a sequence of three rhyming words that also make some kind of logical sense. "Use storage for porridge before I feed George," for instance. Work with rhyming schemes continuously to give you the confidence to improvise with any series of words.
Record your music, if possible, with a lap top. Download music recording software. Plug a microphone into your laptop and record your songs. Incorporate a drum or musical beat with your software to amplify your lyrics. Play your song back. Listen to the composition of the words and strength of its themes. Keep copies of all your recordings to build a collection of musical works.