What do you think about people saying that they read the books but not really ?

okay well i have this girl in my class and we had a bookfair and she brought eclipse and i asked her if she readed the first two (twilight&new moon) and she said yeah (lair) becaues this other girl in my class (which is a twilight fan too)told me that they were talking and she asked her if she readed the first two and she told her no that she's just going to have there and not read it. what a lair and my whole class knows that im a big twilight fan so yeah i really hate her for that

so what do you guys think