If you live in a non-Muslim country, specially in the West, it is very easy to find food during the month of Ramadan. Go to any restuarant outside your neighbourhood, who is going to know? If you cannot afford to eat in a restaurant you can always buy snacks or fruit from a grocery store. An apple a day keeps the doctor away!
If you have many non-Muslim friends, find a way to get invited in their homes. Or just drop in at a meal time

If you have a non-Muslim boyfriend or a girlfriend, that should be very easy. One good reason to be nice to his or her parents.
You can always go to a Sikh temple during lunch time. They serve delicious vegetarian food and it's all free. They never ask you about your religion - I have been to Sikh temples just to eat. You can go to a Hindu temple too. Just go few minutes before the service ends. Usually they serve a full lunch after the service, it's all free. Hare Krishna temples are the best on Sunday for evening dinner. Bon-apetit and enjoy.