When you plan to move out and stay on a place where you will need to share the room with a different person, you need to be on the lookout as to the kind of people who will be sharing room space with you.  

The problem with roommates is that they tend to be a little comfortable with you.  And these problems normally result to a lot of other major problems. What are the indicators that you are getting a bad roommate for yourself?  

•    When the person is used to foul-mouthing then you should reconsider looking for a different room and roommate.  Living your life with a person who fouls-mouth anyone he sees is something that is not tolerable and patiently deal with.  
•    When the person loves to get involved.  Meddling on people's lives just to be involved is another trait of a person that you should look into.  You do not want to be victim of this kind of action where your room would always have the tendency to meddle with your personal life.
•    When the person does not value proper hygiene.  Being hygienic in all aspects is one trait that everyone wants to see on his or her roommate.  If the potential roommate does not manifest good hygiene, you should reconsider your choice.

It is a total nightmare to have a roommate that you do not feel comfortable living with.  Getting the right one should always be a priority.