Host families should move your personal things out before the guest moves in, In
order to prevent causing some misunderstandings.
Host families should inform the guest beforehand when there are someone to visit
them.
Host families should respect the guest's time table.
Host families should respect the decision the guest makes and the idea he or she
has. Moreover, you are required not to interfere with the privacy of the guest.
Host families should bear the cultural differences in mind and get ready for it
mentally in spite of the difficulties to get used to living with foreign guys.
Host families are required not to smoke in the public place
(It is forbidden in many western countries).