In Thailand, it is customary to eat with a fork and spoon. The fork is held in the left hand, to push the food onto the spoon. Then the food on the spoon is put into the mouth with the right hand. This is convenient because in Thai cooking the food is already cut up into small pieces that can fit into the mouth.
It's easy to look like a primitive hunter as you hack away at your food with a knife and fork. But at dinner parties, at a restaurant or in formal occasions, you'll want to use these utensils in the classical manner. There's the European (or Continental) style and then there's the American Style. Which do you prefer?