Answer:
He is shy and uncomfortable in new situations
Explanation:
Yes, it can, depending on the word. Prefixes, however, almost never change the root word. The most common changes of a root when adding suffixes are the removal of a final E that follows a consonant (e.g. diving), or the change of a Y to an I (e.g. silliness).
This can be different for each person you ask
one reason is you can play the book out how you want to, imagine the characters your way, what the place looks like, etc. With a movie that is taken away from you. You are told how everything looks, and the movie/TV van leave out many stuff from the book