As long as you don't bring anything that is not halal (such as ham sausage, marinated small packaged food, etc.). ), you junior high school students love to eat these things and put them in your schoolbag or pocket. If one of them accidentally appears in your room, the host will inevitably feel uncomfortable after reading it, although you may have accidentally forgotten it.
Politeness is just addressing elders, which is exactly the same as Han nationality, and there is no special courtesy of any nation.
What hui people are depressed about is non-halal food, and the rest is really not important.