Attend all the classes. Chinese language study requires consistent effort. While you may be able to skip a class or two in Spanish and still catch up, the same is not true for Chinese.
Sit at the front of the classroom. Watch the way the professor moves her mouth when she pronounces the Chinese words. This is the way hearing-impaired people learn to speak, and it is a very effective technique.
Ask for clarification if you don't understand a word or phrase. Too often students are shy about requesting further explanations. Speak up, and remember that Confucius advised that it is better to ask a foolish question than to remain forever a fool.
Record the lecture and then listen to it again later. Repeat the Chinese words after you instructor. Remember that repetition is the way children learn to speak, and it also works with adults.
Speak Chinese every day. As well as talking in Chinese as much as you can in class, sit in front of a mirror at home and review the Chinese vocabulary you learned in the course. Try to imitate the way you saw the professor move his lips.
Take notes in Chinese. If you don't yet have the language skills, download a translations program--choose one that also provides audio options--and move your notes from English to Chinese. Read your notes aloud as you do this exercise.
Supplement your Chinese language course with additional study. Exercises such as keeping a Chinese diary, watching YouTube lessons and going to Chinese movies will greatly enhance your study.