09/11/2008 AT 02:10 PM EDT
says TV depicts female friendships in a skewed light.
"Like, if you're watching The Hills
, all the backstabbing shapes the way we act," the Seventeen
cover girl says in the magazine's October issue.
"I mean, I love Blake
[Lively]; she's a wonderful friend of mine, but shows like Gossip Girl
kind of condition us to be mean."
The Ugly Betty
star, 24, says she has managed to keep her own
friendships – especially with her Sisterhood of the Traveling Pants
costars – cat fight-free.
"One of the most wonderful experiences I've had with girl relationships was working with them [Lively, Alexis Bledel and Amber Tamblyn] on Sisterhood
. I'd worked with other girls before and it was pretty catty," said Ferrera, who counts Tamblyn as "one of my closest friends." RELATED ARTICLES:
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