You can group restaurants by the food they serve, where the food comes from, or how they serve it. Some serve only vegetables, some are seafood places, and some specialize in a country's cooking like Italian or Korean. Service styles vary too: small plates called tapas, counter service where you order at a window, or a buffet where people serve themselves.
Restaurants also differ by speed and price. There are quick meals from trucks or fast-food shops, family restaurants for everyday meals, and fine dining for special occasions. Some restaurants only deliver food and have no dining room—what kind would you try first?