Since you need help from others, you should show some appreciation, especially when you are abroad. It will be troublesome if no one helps you. Even as a guest, you should bring a polite gift. Here are some suggestions for foreigners:
1. Foreigners like Chinese culture very much. You can bring some artworks with Chinese characteristics to them, such as paper folding fans, silk products, embroidery, etc. They are all very good and they will definitely like them.
2. You can bring some Chinese snacks. Chinese food is an excellent gift for foreigners. I believe he will like it very much.
3. Give him a doll, made into a Tang suit, which is also a very innovative ornament at home. You can customize one. Of course, you can also give a crystal music box. Foreigners have a special liking for this kind of personalized and unique gifts. These are some of my suggestions. I hope you can adopt them.