I have applied for a computer science course at more universities, but one of them really convinced me with a very welcoming attitude. Even if I have not confirmed my place, I have a tutor and he introduced me to some professors in the university to discuss about some topics that I am interested in. But, I find myself in a rather delicate situation. I have just some basic knowledge in their subject, so a discussion with them wouldn't be so entertaining for them, I guess.
Of course, there are a lot of things that I would like to learn, and so many questions to ask, and they seem willingly to answer (actually, ever they do not know that, I will go to their university), so, to what extent may I ask them?