experiences about plans after college

My interview went pretty well, however I think that there are ways I can improve my interviewing skills to get more elaborate answers. I asked if he was planning on attending graduate school after college and he was unsure of his major so he didnt know if he would be going to grad school. His major was potentially criminal justice. In addition, after college his plans are to live in his hometown rockford. He plans do an internship after college and maybe get a job doing something regarding criminal justice. To improve my interview questions for my social action project I will write more elaborate questions to make sure I get a good discusion going as well as good data.