Before you arrive it's important that you communicate openly and honestly with your roommate(s). When housing assignments are released you'll have access to their basic information such as name, address, phone number and email address. Don't wait for your roommate(s) to contact you. Take the initiative and get in touch with them as soon as you can and discuss all aspects of living together including establishing boundaries and creating a roommate agreement. Make sure to talk about your hometowns, interests, families and of course, what you want to do at BU.
We know social media can be a big part of student's lives and sometimes we look at people's profiles and make snap judgments about them. Treat your future roommate fairly and talk with them first. Don't allow what you might "perceive" on social media to influence your opinions.
Remember, open communication will allow you to create a mutually beneficial relationship and living environment.