At the end of the meal, my father leaned back and belched loudly, my mother for her fine cooking. "it's a polite chinese custom to show you are satisfied," explained my father to our astonished guests. robert was looking at his plate with a reddened face. the minister managed to muster up a quiet burp. i was stunned into silence for the rest of the night. —“fish cheeks,” amy tan explain how this passage uses descriptive details to you picture why this situation is so embarrassing for amy tan.