How to get a girl to like me in 5th grade?

im in 5th grade and thers a girl thats smokin HOT im a little bit shy and shes not in my cl she has 2 friends always with her and 1 brother please help my heart hurts i only get a chance to talk to her when im leaving from ressec and after school in the hallways i dont know anything about her and dont know if i want to tell mom and or dad im also latino have a big and im brazilian but i talk fluent english and portugesse