Emma Watson on her infamous pixie cut: Guys hated it, but I didn’t care!

Sometimes you just have to do things for you — and that was Emma Watson's modus operandi after she completed her eighth and final "Harry Potter" movie in 2010. Leaving Hermione behind, the British actress famously chopped her long locks into a bold pixie cut, and signed on to explore roles that were different from the magical one she was used to.

So about that hair... It was the snip-snip heard throughout Hollywood when the 22-year-old debuted the super-short style in August 2010. While everyone was a critic, Watson didn't care, taking to Twitter to tell her followers that her new 'do made her feel "incredible" and described it as "the most liberating thing ever." Now two years later, she's talking about her infamous haircut, noting that it wasn't well received by the guys in her life. "Of course, men like long hair," she tells Glamour. "There's no two ways about it. The majority of the boys around me were like, 'Why did you do that? That's such an error.' And I was like, 'Well, honestly, I don't really care what you think!' I've never felt so confident as I did with short hair — I felt really good in my own skin."

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As you can see on the October cover of Glamour, Watson has grown out her locks to more of a chin-length bob, which she says was a decision dictated by her job. "I have to for roles," she tells the magazine. "But if I had it my way, I would have just kept it short forever." Her next big-screen appearance is in the film "The Perks of Being a Wallflower," which begins a limited run on September 21. "Making this movie was so pivotal for me because I realized I do really want to be an actress, which wasn't something I fully knew, since 'Harry Potter' was such a singular experience. Obviously, I'm nervous to see what other people think, but it kind of doesn't matter to me. It's so cheesy to say this, but it's the journey, not the end goal, that's important."

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Although she took a hiatus from college to promote the final "Potter" flick, Watson is back at Brown University to complete her studies. While attending the Rhode Island school, she largely lives out of the spotlight — and that's just the way she likes it. "I just feel like if I start opening the door to talking about my university experience, then people just kind of … own everything," she tells Glamour. "There was a lot of stuff a couple of years ago saying that I was bullied at Brown and awful things like that, none of which were true. But it's my personal experience and it's my personal life ... and I would just go crazy if I didn't have a reality, if I didn't have a life outside of the roles I play. The entertainment industry is pretty nuts, and having had that experience outside of it and going to university has really made a big difference. It's important to me to feel like I have my own life."

Part of her personal life includes her budding relationship with Will Adamowicz, whom she met while they were both studying at Oxford. The first time they were photographed together was during a smooching session at the Coachella Music Festival in April. "My friend got me tickets [to Coachella] for my birthday, and what am I going to say: 'No, I'm not going to go, because I don't want to be photographed?' But it was a huge crowd, and I thought there was no way anyone could get pictures of me, but somehow they found me. It's difficult on my dating life, because anyone I get photographed with is automatically my boyfriend. So it just makes it look as if I've had, like, 6,000 boyfriends!"

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Watson says part of her new post-"Potter" image also involves working with a stylist to help her pull off a more sophisticated look. "When I was younger, I used to do it all myself, but I've had to get help because it's gotten to a stage where I can't show up in my Converses or whatever I bought from High Street," Watson tells the magazine. "And just practically, these gowns are ridiculous. You're being photographed from every angle, so not only do you have to consider how the thing looks, but whether you're going to be able to sit in it and whether people are going to be able to see up your skirt.

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Speaking of girl problems — like whether your hem line is too short — Watson declares herself a major fan of Lena Dunham, whose real-life experiences provide the storylines for the buzzy HBO show "Girls." "I am literally obsessed with Lena Dunham," Watson says. "She's, like, my favorite person in the world. I follow her on Twitter; I read her every day. And, yes, 'Girls' is an example of something so refreshing because it feels real."

Read Watson's full interview in the October issue of Glamour, which hits newsstands September 11.

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