1. Firstly,talk with neighbor about how you used to live. What time did you wake up, what to eat, when you come, bath time. Its very important.
2. Then it would be good to give the floor to another party:-) Have to compromise.
3. Food. The main component of the normal functioning of the body. Discuss some of details,for example what you will eat, who will cook. Set up a schedule.
4. Set up a schedule of cleaning.
5. If you decided to invite someone to yourself, alert neighbor.
6. Also, you should divide living space (bed, wardrobe,kitchen,etc)
7. The best way to make friends with a neighbor:-)