I am meeting an Ex- Teacher of mine to tutor me...where is the beset place to meet?

He is not a teacher anymore at the school we were both at...so we cant meet there anymore. He just tutors now..so we were debating on where to meet. Any ideas?? He said he could do librarys, or my house...but I am alittle weary of him coming to house. (I live alone...and idk...its wierd) We were going to maybe have a lunch or something and then just hang there and work on stuff..but I dont think resturants would appreciate us sitting there for that long of time....