Julia Louis-Dreyfus plays the vice president on TV and now pals around with the real one offscreen. The star of HBO's "Veep," returning for its second season on Sunday, was at the White House on Friday for lunch with Vice President Biden.

Louis-Dreyfus told Yeas & Nays the previous day that she would welcome Biden's input on her role. "Any suggestion he would give me I would be thrilled to get," she said.

But it seems the actress was the one offering advice Friday.

"I surprised him by sitting at his desk, so he thought he'd just ask my advice on various briefs he had to deal with. And I was happy to give him my advice, which he paid no attention to whatsover," she explained in an audio interview shared by the White House.

At a reception hosted by the Motion Picture Association of America on Thursday, Louis-Dreyfus mingled with MPAA chief and former Sen. Chris Dodd, D-Conn., and former "Saturday Night Live" performer Sen. Al Franken, D-Minn. Biden was a hot topic there, too, with the "Veep" star admitting when he called last year to congratulate her on winning an Emmy for her role on the show, she didn't pick up.

"I probably saw unknown caller and let it go straight to voicemail, unfortunately," she laughed. "He just was very complimentary in his call of congratulations. So I can only assume he thinks that I'm doing a good job, or he's exceptionally polite."

The show films in Baltimore, and Louis-Dreyfus, whose parents live in the area, told us "it means the world to me" that "Veep" is popular in D.C.

"It's obviously a comedy, but we try to make the world as credible as possible," she said. "I've had people who work in government, a lot of people, come up and and say, 'Oh my gosh, I can't believe you did this because it's exactly what happened here.' So when I get that kind of feedback, I feel like I'm doing my job right."