This marks the debut of a series where we ask "Big (only) in Japan?" We have a hunch but we want to hear from you. Have you seen this outside of Japan? Let us know in the comment section below.

In Japan, the end of March brings warmer weather, cherry blossoms and the start of the baseball season. Opening Day for the Pacific League was on March 20, and the Central League opens March 26. Lead by self-organized cheerleading teams, the crowds will chant elaborate cheers and songs (often a different cheer for each player), wave flags, jump up and down, and in the process work up a serious thirst for an ice cold beverage.

Enter the beer salesgirl – in Japanese, biiru no uriko (ビールの売り子). In Japan, “Hey, beer man!” will not only earn you strange looks because you are yelling in English – additionally, no men serve beer at baseball games here. The task is instead performed by young women who wear special backpacks that contain a miniature keg of beer. Dressed in short shorts and team uniforms, they move throughout the stadium seats, serving fresh beer right off the tap to reenergize the hordes.