After almost a week in Wisconsin, Daniel Berger and Justin Thomas look like natives.
The United States golfers, perhaps feeling ultra-confident with a 9-3 lead, came out to the first hole at Whistling Straits to pump up the crowd before the afternoon matches.
There were the perfunctory chants of "U-S-A!" and a quick session of "the wave" in the grandstand.
But the fans really lost their minds when Berger and Thomas dug into a cooler and started chucking beers into the crowd.
After it looked like the golfers had exhausted their stash, a couple cans were tossed back onto the course.
The crowd immediately implored Berger and Thomas to chug them.
There seemed to be a moment of hesitation before the U.S. golfers slammed down the beers with gusto. They looked like seasoned pros.
The crowd, many of whom have been imbibing on the grounds since the gates opened at 6 a.m., predictably ate it up.