DO TALK CALMLY AND OPENLY.
By being honest and speaking face-to-face, it’ll be much easier to read the other person and see where they’re coming from. Does your roommate take forever getting ready in the bathroom each morning? Instead of sulking in your room worrying about how late you’re going to be, be honest with her and let her know why it’s bothering you. Odds are, you’ll come to an agreement and compromise leaving you both happy. And looking fabulous each day (thank you, 10 extra minutes).