Alas, I can't follow very much dialog without looking. I can get simple things; greetings, introductions, polite chit-chat, locations, and the occasional adjective or verb. One problem is that we're learning the polite forms of verbs in class, and most people use the common forms, so not knowing those makes understanding dialog more difficult. On the other hand, I can now tell when there's a character who has the quirk "always uses polite speech" because I can understand her more easily. :)