Many larger metropolitan areas have significant ethnic populations. San Francisco's Chinatown is probably the best known, but many other cities and towns have smaller pockets of immigrants and the communities they fashioned after coming to America. Organizations from advocacy groups to social clubs can be found all over the U.S. Finding one might be a challenge, but often a call to the reference desk of your local public library will help you find what you need. You can also take matters into your own hands and place an ad in the local newspaper looking for a native speakers or speakers of your language with whom you could practice. Universities and college are a good place to find students from other countries who would not only enjoy a chance to help you master their language, they might also appreciate the opportunity to form some ties in a land far from home.