Acting focus for Lohan

Lindsay Lohan

Lindsay Lohan, who celebrates her 20th birthday next month, wants to snag plum acting roles, not a serious boyfriend.

"I need to focus on my career and getting my life in order," Lohan, pictured, told Harper's Bazaar.

"I've heard that guys are intimidated by me even though I'm not an intimidating person," she says. "I'm honest and straightforward, and people aren't used to that."

"I've become like the guy in relationships. Lately I just cannot be in a monogamous relationship."