Summer vacation plans

I'll go to Minnesota in U.S for a month, and I'll stay with a family in that place. That is my first experience, so that is fun for me but I'm little nervous. However, I expect to leave from my parents and live in the place where I don't know for a month give me to various great things for me, and let me grow up. I won't bring my mobile phone. I often use that every day, so I wonder changes by that will happen. In addition, I will concern with my host family and people in that place positively to improve my English ability. 112