Vladimir Nabakov asks his students:

Select four answers to the question what should a reader be to be a good reader:

 

1. The reader should belong to a book club.
2. The reader should identify himself or herself with the hero or heroine.
3. The reader should concentrate on the social-economic angle.
4. The reader should prefer a story with action and dialogue to one with none.
5. The reader should have seen the book in a movie.
6. The reader should be a budding author.
7. The reader should have imagination.
8. The reader should have memory.
9. The reader should have a dictionary.
10. The reader should have some artistic sense.

The students leaned heavily on emotional identification, action, and the social-economic or historical angle. Of course, as you have guessed, the good reader is one who has imagination, memory, a dictionary, and some artistic sense–which sense I propose to develop in myself and in others whenever I have the chance.

via Brainpickings