Clear communication is perhaps the most important issue to successfully living with a host family. Only when everyone involved knows what is expected of them, and what to expect in return, can honest relationships develop. To avoid cross-cultural confusion after you move in, make sure you clarify certain details before you descend upon your host family. Ask where you will sleep and store your possessions, which meals you will eat with the family and which you will be expected to prepare for yourself and also where you will store any food or snacks you purchase.
It is also important to arrange access to laundry facilities, internet and telephone, your responsibilities regarding younger children and pets and any chores you will be expected to complete.
You should also ask if the family has any curfew expectations and how they feel about alcohol and tobacco use.