People communicate through facebook, this is also a great way to make friends. There is a group for international students called international students of Bodø where you can ask questions and invite people for coffee. There you will also find information about language cafes, possible sporting events and free courses to learn Norwegian. It can be quite hard to make friends since Norwegians are quite to themselves and their own friends, but don not let that get you down. If you have any specific hobbies like reading, guitar playing or photography for example it is always an option to look for clubs that discuss those subjects and try to make friends through that.