The Canadian actress, 33, has been out and about with Welsh actor Michael Sheen, with the pair recently spotted engaging in serious PDA.
And, McAdams tells November's InStyle, dating an actor makes perfect sense.
"I usually take away one close relationship from every job, some romantic, some not," she tells the magazine, which hits newsstands Friday. She previously dated Ryan Gosling, her costar in The Notebook, and actor Josh Lucas.
Still, she says, she doesn't have a type when it comes to men. "I don't think so, although I guess everyone says that, right? I like to be surprised by people, and I find that makes life a lot easier too, when you just accept what's coming your way."
Asked about her dating style, McAdams says she's not afraid to put herself out there.
"I'm not shy," she says. "But I feel like I give off more confidence than I really have. I get in trouble for being overly friendly at times."
As for having children, McAdams says she's waiting for the right time.
"Part of me is very attached to the idea of having children," she says, but adds that "it'll depend on if I find the person I want to do that with."