Not seen for a long time, How's it going? I have recently come to the school a native of Germany, he was very humorous and friendly. He said that he came from Hamburg, just 1 week is his birthday and I intend to ask the students to eat and send him a birthday present to him, but do not know what he is going to like, do you have any good ideas right? ? For example, the Germans have any preferences and customs, like what to eat? ?