A handshake from the president? Sure. A selfie? No way.
Some of America's Olympic athletes say they were asked to keep their mobile phones in their pockets when they visited the White House and met President Barack Obama.
The White House said it was long-standing practice because taking individual photos with hundreds of people would not be practical and there are official photographers at such events.
But the request to the Olympians drew attention because it came after the selfie Boston Red Sox baseball star David "Big Papi" Ortiz took with the president during his team's visit to the White House.
Many criticised that snapshot as a marketing ploy after Samsung, the maker of the phone Ortiz used, used the picture in an advertisement. Ortiz denied taking the picture with the knowledge it would be part of a promotion.
"I was a little bummed," said Nick Goepper, a bronze medalist in slopestyle skiing. "I thought about trying to sneak one, but they were pretty adamant about it. I'm sure if they would have allowed it, there'd be 150 people with selfies with the president right now."
The Olympians were visiting the White House after competing in Sochi, Russia, in February. The president typically invites high-profile sports teams and athletes to Washington to congratulate them on their performances.
The White House confirmed that the athletes were asked not to take their own photos with Mr Obama. It said that in the interest of efficiency, it has been practice for years for an official White House photographer to take pictures for large groups instead. It insisted there was no outright ban of selfies.
"There's no discussion of a ban," said White House spokesman Jay Carney.
The Red Sox have described the guidance they received from White House staff.
"Last week the Red Sox were told, 'Don't worry about taking your phone out because there will be a White House photographer on hand'. They weren't told not to take them out. It was more of a 'Don't worry, someone will be there to take pictures with the president if he has time'," the team said in a statement.
Ortiz's selfie shows the sunglass-clad slugger grinning while standing next to the president and holding up a uniform with "Obama" across the back. Ortiz tweeted the photo, and it was resent by tens of thousands of Twitter users.
The White House was not amused. Mr Carney said at the time that the White House objects any time the president's image is used for commercial purposes.
On an appearance on CBS's Face The Nation on Sunday, White House senior adviser Dan Pfeiffer said the White House expressed its concerns to Samsung about the ad. "Maybe this will be the end of all selfies," he joked.
Turns out, it was - at least for the Olympians.
Aerials skier Emily Cook said nobody barred general pictures during the general visit to the White House. But when they were in line to meet the president, they were told to keep their phones in their pockets.
"It would have been fun but I wasn't too bummed," Cook said. "He is the president, after all."