How can I make friends with a Professor?

I see what your saying. The best way to be friends would be to truly show your interest in the class and maybe do extra research and show him some insight and see his views on it. Professors like that like to see a student look further out of mere interest. sometimes they like a little trivia to keep their minds sharp. Show that you are very open to his insight and see his point of view. I do this out of interest not just to make friends. I got along with my radiography professor because I was interested in what she taught, my grades can vouch for that, but I also knew how to have fun along with getting the job done. I think she liked that about me.