1. Don't eat pork
For example, the Hui people we are familiar with don't eat pork, so there is no pork in some Muslim shops. If we look at its menu, we will find that there is chicken, beef and mutton on it, but there is no pork, so for the friends who usually like to eat pork, they can't order pork when they go to a Muslim restaurant. If they order pork, firstly, they won't provide it; secondly, it violates their religious beliefs, which will bring them some unhappiness and disrespect for Muslim restaurants. So when we go to a Muslim restaurant, we must not eat pork.
Step 2 don't drink
Generally, restaurants will provide wine, and when we go to restaurants, our friends are used to ordering a bottle of wine to drink. But if you go to a Muslim restaurant, you can't drink. Because you can't drink in the shop under the Islamic faith, if you go to a Muslim restaurant, you must abide by their faith and never drink, otherwise disrespect for their gods will cause some resentment.
Step 3 don't eat visceral blood
Usually we like to eat the blood of various animals and their internal organs, but it won't be available in Muslim restaurants. So if you go to a Muslim restaurant and order an animal chop suey or animal blood, it is impossible to provide it.
The above is about what halal means and some taboos that halal restaurants need to know, so when friends usually see halal food, it means that there is definitely no pork in it, and they don't eat dead animals, so it is relatively clean and hygienic. Then eating in Muslim restaurants should also abide by some of their beliefs and respect their beliefs.