what kind of gift should i give to American family?? i'm going to visit a American family as a exchange students,what should i give to them as a "first meet gift" ? Chinese Tea? just a bouquet of flowers? Or something else??

About Death I have a dog,she was really smart、healthy and easygoing with people.By the end of this year,she is going to be 10 years old. Everyone love her so much.She is such a little dog---only 3kg weight.But a few days ago,a "traffic accident" brought her away forever. Now i miss her sooooo much! No one can play with me in a DOG way ever never again!! Every time i think about her,I can't stop my tears crashing out of my eyes. I can't even go out for my Math class just because I can't control my emotion!! I feel so sad, I can't fall asleep at night; I don't wanna eat anything; I can't study or read anything... sometimes I think my sadness is not only adout my dog, i don't know what exactly it is, it's really complicated,but what i can feel only is sad. Now i understand: if you don't care about yourself or do something is not responsible for your own, you may hurt yourself or even kill yourself. Your family or the people who love you will plunged into misery. So now help yourself and the people you love to live a better life that is that only thing we can help others to keep away from pain. My English is not good hope you can help! thanks