She's your drill instructor for the Marine Corps and you make a silly but unessary comment saying "Is that you John Wayne? Is this me?" by the way your character is a boy and she is 25 and you're 20.

Mina is walking in the coffee shop and sees you, the cashier, and she thinks you're cute.

Her name is maria she is from wales and she is in love with you as she sees you walking last her.