Mila Kunis has joked it's easy for her to go incognito as long as she doesn't talk.

The star voices the character of Meg in popular animation Family Guy. Mila says despite her popularity, she is able to go unnoticed by the public if she wants to.

"My voice is more recognisable than what I look like. If I don't have make-up on and I put sunglasses and a cap on, I'm fine, I just can't talk!" she quipped.

The Hollywood actress has grown up in the limelight, and knows the perils of fame. Mila wishes she could relax around new people 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," she told more! magazine. "But I'm gradually feeling a little more secure about who I am and just enjoying everything that's been happening to me.

"I'm trying to have more fun in life. I'm much more conservative than people think!"