Communal Eating - In most cases in Thailand, Thais will order several dishes then everyone shares, eating communal style. In this case, either wait for someone to serve you (one of the youngest people at your table usually will) or, if you help yourself, just take a small amount of rice followed by a small amount of toppings. Thais don't heap their plates full. Instead, they just take a small amount and keep going back for more. Normally you would serve yourself with the larger spoons that arrive with the food. In many restaurants though no other utensils arrive so it's perfectly acceptable to use the fork and spoon you're eating with to help yourself to more food from the communal plates.