Take a class. Many dance studios around the country offer Tahitian dance classes. Check with studios that offer belly dance; many belly dancers also train in other Polynesian dances. Start with a beginner's class, and be ready to sweat! Wear comfortable, loose-fitting clothes and take along a pareo, sarong or scarf to tie around your hips. If you can't find a class, you can also learn from a video (see Resources).
Practice in front of a mirror. Watch yourself as you practice your Tahitian dance steps and arm movements to make sure you are correct in your motions and the placement of your body. Play some music while you practice to get used to moving to the rhythm of the music. Practice keeping your upper body still while rotating your hips and taking steps. Also practice elegant and smooth arm movements and steeping with your feet flat on the ground. All of these elements are crucial to Tahitian dance.
Dance with others. If you aren't in a class, advertise through your local dance studio or on sites like Craigslist for other dancers to form a practice group. Dancing with other people will give you an opportunity to learn new moves, get feedback and share your love of Tahitian dance.