If I went to a summer language school I would prefer to stay with a host family, because this is more interesting. They will tell me about their traditions and I will tell me about our. If I would speak with them it will be good for my language, I will improve it. Yes, maybe in hostel I also spoke with people, but living in family is more comfortable. Maybe they have children and I will find friends. For improve my language I am watching movies in English and reading books. In English, the most difficult is grammar for me