Meet up with a local language partner. Contact your local language school and ask if there are any students that are native speakers of Spanish. You can set up an exchange where you will converse in Spanish and your partner will speak only in English. This way both of you benefit from the partnership.
Practice with a friend or family member that is fluent in Spanish. This could be one of the best hidden resources you have to improve your conversing skills. Ask around and you may find a language partner that you never knew existed before now!
Use a program like Live Mocha, which is a free program that allows you to do a search for a language partner that is a native speaker of Spanish. After you find an appropriate match you can chat with them via the website's special chat service to improve your conversational skills.
Review pronunciation rules for Spanish and make sure that you have been pronouncing every letter correctly. A good website for reviewing these rules is studyspanish.com. Remember certain rules like the "j" in Spanish is pronounced with an "h" sound and words that start with "v" are pronounced with a sound that is between a "b" and "v."