Eating western food with parents

My parents and I ate a meal of western food at Henry’ home in Xinjinlun Department. Actually both my parents did not like any western food at all before they had the meal with me. After the meal, they changed much idea about western, even they spent 500 yuan to set up a card of Henry’ home to eat later!
We ordered 5 dishes totally. Three of them were principal food for each of us and we shared 2 dishes of foodstuffs together. During the eating process, I tried to sit very straight to eat, and I required dad and mum to eat like me at the very beginning. However, keeping the standard postures to eat for more than 30 minutes was so difficult! In addition, the food was so delicious that we were could not pay enough attention on our postures. We enjoyed too much and ignored some principles of having western food…
Father paid for the meal after we finishing eating, there was a discount that day so he did not pay too much.