How do i ask her out?

ok i figured this out theres a girl i lke and ive been droping hints all summer so im totaly readyto ask her out but i dont no how we walk home together becuase her nabohoosds roight across from mineso im aksing her out after school the first day i havent asked anybody out like in person in a long time (dont judge me) so what do i do i mean like how do i tell her i like her and how do i ask her out and how do i act after i do