All three actions (I, II and III) would suggest that you are recognizing his needs and feelings.
When you ask about his home country, you are getting aware of how the people there live, the hardships, their culture and various new aspects of life you may never have wondered about.
When you listen carefully as he talks to you, he can feel warmly received in a new country, which is very good when you feel lonely in a new place.
When you get interested in his experiences in the United States, you can show that his opinion is important.
Everything you do to recognize someone's needs and feelings is called Empathy.
