Hello. Are you still interested in having me answer your question or would you prefer I opted out? I noticed you relisted so I wanted to check to be sure.
Let me know,
Yes I would still like you to answer my question. Sorry I wasn't sure if you'd come back soon so I was a bit indicisive.
Ok, I will work on your question and have an answer for you in just a bit.
if I had a conversation with him about general stuff, and if he didn't seem interested in talking, shouldn't I go further? What should i do next in this case?
You may want to go back to just saying hi and smiling when you see him. Give it some time then try again. You can also get to know those who are closer to him and maybe try to get to know him through his friends. But if he still is not interested, then it might be better to keep it friendly and let it go for now. You never know if later on he might change his mind.