Being a Japanese high schooler...
The boys are funny... they alter their trousers in such a way that they literally hang off their arses, with the trouser crotch almost at their knees. They shave their eyebrows, wear sport style half socks and dye their hair slightly off black.
The girls are funny... they alter their skirts in such a way that they are so far above the knee that any kind of movement will give all and sundry a sudden flash of underwear. They shave their eyebrows, and draw them back on with a brown pencil, wear no socks and dye their hair in a thousand shades of brown.
The teachers are funny... they alter their trousers in such a way that approach their armpits, and attach a mobile phone pouch to one of the belt loops. They have old fashioned hair, and wear indoor slippers with socks, and without exception wear a white t shirt under their shirt.