What kind of things do young Japanese like to talk about/do?

Question:

ages 19-21 specifically

Hobbies?
What do they like to talk about or what is usually the subject of conversation?
Do Japanese youth at this age like to make friends with ppl from other countries? ^^
How can I be a good friend to someone of a different country? How to even go about making one in a university setting? Would it be weird to just try to talk to someone sitting next to you on a computer in a library?

I rly want to make friends with other girls, Japanese girls, and with Japanese guys as well (of which I am double shy! since 1) they are the opposite sex ^///^ , 2) different culture as well)

Answer:

1. how to learn English
2. qualification exams such as bar exam and whatnot
3. career
4. boyfriends, girlfriends, marriage
5. travelling
6. fashion
7. wining and dining