In your country, in your culture, are there any food items that are out of the ordinary? Could you eat frog legs, beef tongue, foie gras, oysters, or snails, as some people do in France? Does chocolate have an earthy taste to you? Are there any distinctive foods that you are only supposed to eat for special occasions, during very specific meals? How would you react if your guests were unable to take on your habits? Do you usually eat sweet or savoury food for breakfast? What would you do if your guests were unable to eat the same food at the same times, like soup for breakfast, for example?
In France, Belgium, Switzerland, and Canada, holiday celebrations are traditionally linked to certain foods - oysters and foie gras are often served at the Christmas table, for example. Dessert is always made up of something sweet, like fruit or a cake. On the other hand, we don't eat insects.
As a general rule, it is rude to decline to taste a dish. Even if you don't like certain types of food or cooking, it is best to put a small portion in your plate and taste is so as to not offend your host. However, health reasons (allergies, a diet) will get you out of eating certain things. Usually, people clear their plates to indicate that they are no longer hungry.
Soup is a highly appreciated dish. The Ministry of Health recommends it to prevent obesity, which is affecting an increasing number of people. Soup is eaten as a starter at lunch or dinner.
French cuisine makes prolific use of herbs, salt and pepper, and also includes spices, in much smaller amounts than in Africa or Asia.