Everybody knows the famous food of Thailand, which is a mix of spicy and sour tastes. Thailand is divided into four main regions, i.e. North, Northeast, Central, South. Each region has its own culinary specialities.
There are different types of rice. The steamed rice is called "KHAO SUEY" (ข้าวสวย). One of the most famous is sticky rice ("KHAO NIO" - ข้าวเหนียว) from "ISAN" area (อีสาน - northeastern part of Thailand). Thai people eat it with hands by making small balls. Central plains people often say that "Eating sticky rice make you lazy" so that's why before "ISAN" people have the wrong reputation of being lazy. Nowadays central plains people also like eating sticky rice. With migration of many workers to Bangkok, recipes from different regions of Thailand has come to the capital.
During a Thai meal, all the food is served together. No entrée, main dish and dessert like in westerner countries. Meals are eaten together and shared. In most cases, Thai people don't eat dessert. Dessert (fruits, cakes) are eaten when going out for a walk. All food in the plate shall be eaten. Thai people don't like to waste food, especially rice.
Thai people like to speak about food, about next meal. The sentence กินข้าวแล้วหรือยัง ("Have you already eaten ?") is same as "How are you ?" in everyday speech and is often used to start a conversation.