When you are sharing your house with somebody for whom you do not have any particular emotion, it becomes difficult to take nonsense from such people and compromise is absolutely impossible. So it is important to know how that person from beforehand than bickering and badgering about it later.
If you have a roommate who does not share your temperament then it becomes irritating. If you are clean and that person has a habit of living untidily, then it's not preferable to have him/her as a roommate. Hence, to help you find the perfect roommate, given here are some questions you should ask your potential roommate to understand his/her personality.
The other category of people fails to know the importance or the meaning of Cleanliness. So it is important to know the person's take on cleanliness and see if you are fine with it.
By when do you pay the rent?
This question will give you an idea as to how sincere the individual is about money and when it comes to paying off bills, how promptly does he /she behave. The main reason to ask this question is to know the take of the individual regarding money so that it does not become a huge pain and you do not suffer because of it.
In fact the best and foolproof way to run a check on that person would be ask for his/her credit report so that you know how the person has been with his/her prior dealings.
What do you generally do on weekends?
This question is asked primarily to know if he/she socializes and what are the things he/she does as a way of entertainment. This will make it easier to know whether you belong to the same wavelength or not. Because the time that you spend with your roommates is mostly on the weekends, your ideas of entertainment should be similar, if not the same.
Do you bring friends over at home?
Now this is an important question and would give you an idea as to who are the people you will have to deal with since sharing the same apartment means putting your security, safety and privacy at stake. So make sure that you let your potential roommate know about the preferences you have regarding guests or friends at the place, especially overnight guests.
Do you smoke/drink/dope?
This question should be given preference since this is a behavioral interview question. Addiction to substance is an issue and check if you will be able to deal with it.
These are the few questions that you might ask your potential roommate during the interview but then be careful since you might sound extremely finicky. The other thing, which has to be remembered, is that there is nothing called a "perfect roomie", it is just about how tolerant, open-minded, responsible, respectful and compatible both of you are.