The 'Ted' actress - who is believed to be dating Ashton Kutcher - is trying to shrug off her cautious side and become 'more fun' and 'more open' in her life.
"I'm trying to be less guarded and more open. I find it hard to trust people. There's a side to me that's very cautious and suspicious. But I'm gradually feeling a little more secure about who I am and enjoying everything that's been happening to me,” Contactmusic quoted her as saying.
"I'm trying to have more fun in life. I''m much more conservative than people think - I mean, I don't send out naked photos of myself or climb out of limos without any knickers on!" she added.