You shouldn't snoop through someone else's belongings without permission.
Jane is at her new boyfriend Bob's apartment, waiting for him to finish using the restroom, so they can go on a date.
Jane wants to find out more about what Bob is like.
When Bob returns, Jane asks him if he minds if she looks through his bookshelf to see what he enjoys reading.
Jane searches through Bob's belongings looking for clues towards his interests.
Bob is flattered by Jane's interest in his hobbies and happily tells her all about them.
Bob catches Jane in the act and is very turned off by her behavior.