I step up to the counter at Willy's Cafe at Willamette High School in Eugene, Ore., and order a latte.
There's a powerful scent of fresh coffee in the air, and a group of juniors and seniors hover over a large espresso machine.
Carrie Gilbert, 17, shows how it's done: "You're going to want to steam the milk first," she explains. "Then once you have the coffee, dump it in and use the rest of the milk to fill the cup."
She hands over my order. Not bad.