U.S. Rep. Aaron Schock (R-Ill.) has been known to trade workout tips with GOP Vice Presidential nominee Paul Ryan, but during Ryan's campaign stop in Rosemont, Ill. Sunday, Schock had a tip for Thursday's debate with Vice President Joe Biden: "Don't screw up."

Schock told NBC Chicago "My last advice to him was, 'Well, Paul, just don't screw up.'" Ryan reportedly took the tip in stride: "He kind of chuckled and said, 'Yeah, everybody's been telling me that,'" said Schock.

While not the first time Schock has issued a helpful hints to Ryan, his real advice for the debate, it turns out, was "be yourself."

"You got chosen as VP because people like you, because you're knowledgeable, because you can sell what it is you stand for," Schock told NBC. "And just do that tonight: Deliver who you are to the American people."

Ryan goes in to Thursday's debate -- the only one he'll have against Biden -- riding high on running mate Mitt Romney's momentum from the first presidential debate held Oct. 3. Though Biden is noted for his history of memorable gaffes, he was deemed the winner in the 2008 veep debate with Sarah Palin through keen gaffe avoidance and a few inspired responses.

The 90-minute debate starts Thursday at 8 p.m. CST. HuffPost Politics has more key essentials for watching, streaming and following along with tonight's debate.

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