Keio gives the option for international students to do a buddy (tomodachi) program! 2-3 Japanese students will be grouped with 3-4 international students and the program leaves it up to each group of students to determine what they want to make of this experience. The form to apply for this asks for you contact information, interests, and what you want to gain from this program. The deadline to apply is on February 29th, so I have some time to think about it! I am not sure if I will take part, but I think this is a really neat way to make friends. Here is the website where you can read more about the program :)