Hold the knife in your right hand and the fork in your left hand.
When eating Western food, use a knife to cut the food into small pieces, and then use a fork to put it into your mouth. Generally speaking, Europeans do not change hands when using knives and forks, and always use their left hand to hold the fork and put food into their mouths.
After Americans cut the food, they put the knife down and hold the fork in their right hand to put the food into their mouths. But at any time, the knife must not be put into the mouth. At a Western banquet, the host will arrange for men and women to sit next to each other. Western gentlemen who give priority to women will show their attentiveness to women.
Extended information:
When eating Western food, you should first drink an aperitif, mainly wine with a higher alcohol concentration, and eat some salty crackers at the same time, which is equivalent to letting the stomach adapt. Then everyone comes to the table, and the first course is usually cold platters, hot vegetable pancakes or seafood, served on a medium shallow plate.
If the first course is soup, use a deep plate and a large spoon. No matter what you eat, the first plate must be removed. The ensuing main course is served on a large platter and includes at least two hot dishes, one meat and one vegetarian, sometimes with rice or noodles as a side dish.
The staple food is always French bread. After everyone has put the food on their plates, the hostess picks up the knife and fork and wishes everyone a good appetite before the guests can begin.
Baidu Encyclopedia—Western Restaurant