It is wrong to violate someone's privacy.
Jane is having lunch with her new date, who went to the bathroom and left his phone on the table.
Jane wants to find out more about her date's interests to see if they have much in common.
Jane waits until her date is back from the restroom and asks him about his hobbies and interests.
Jane looks through her date's phone to find out more about his hobbies.
Jane's date feels like she's a very good listener and grows instantly fond of her.
Jane's date notices her behavior on his way back to the table and develops a very negative opinion of her.