Hosting a Japanese exchange student

Hey, we recently welcomed a Japanese exchange student. He�fs very shy and spends most of his time in his room.
How do I bond with him? Also, how do I explain that he�fs to be outside his room, socialising and learning the language?
I don�ft want to be rude, I just worry bc he seems depressed (as he spends most of his time alone, and when we ask him if he wants to join us for dinner he refuses). He�fs been here less than a week, but from our previous experiences with exchange students, he seems like he�fs not enjoying his stay.
I also want yo remind him to only sleep at night (that way he�fll suffer less from jet lag, and will be able to adjust to our time zone).
Any suggestions?

Ps. I don�ft think he likes me 😅 he only speaks with my brother and when I say hi he seems bothered. Is it customary to only speak to men? (I�fm a woman) Or is he shy?
I don�ft think I�fve done anything wrong. Since he doesn�ft seem interested in talking to me I leave him alone, not to bother him. What should I do?

How old is he ?
Ask your brother to interact with him or try to talk to him with your brother present.
Or is there any coordinator or supervisor that in-charge of the exchange program that you can talk to?

As a person who lives and also teaches students from outside of their home country, I can tell you that it can be extremely challenging and draining talking in a foreign language all day at school. I'm also guessing that this student may be suffering from culture clash or may even be home sick.

To put it simple - there are too many variables for us to say what is really happening. The best thing I can suggest is to give him time, some space and slowly encourage him to move outside his comfort zone.

I can also confirm that it's not a Japanese thing for males not to speak to females. There are other things - such as him being shy, going to an all boys school in Japan, having a domineering sister or some other obscure thing which we don't know or understand.

One thing which was rather enlightening to me was a conversation with one of my family's former exchange students years later. In their first week (she was Swedish), her first thought was "where the hell am I and why did I decide to come here?". When she left - she was family and we still speak to this day. Just remember that time changes a lot of things...