Living in Uni residences or student housing involves sharing facilities with other students and making new friends...
There will be an inevitable amount of nerves. Pointers to remember are:
1) Everyone's in the same boat! Open your door and knock your next door neighbour's door to start making conversation when you first arrive.
2) You can't be everyone's best friend but a bit of investment in new friendships might be all it takes to break down barriers and begin a life-long friendship.
3) Friends bring health benefits: people who chat to friends experience less stress!
The video is a little extreme but the usual tolerance, respect and understanding apply with flatmates as this can often pave the way to good relationships and quite often friendships!