way my BF told me

we were friends but then he told me he liked me. this is how he did it.

first he asked me to the dance but he didnt want to cause he was scared i would reject him. i accepted cause i liked him.
then after about a month he said to me: i need to talk to u. he then just said: i love you. will you be my girlfriend. i will leave u alone to think about it it was as simple as that.
just be simple. jsut tell them u love them and would you be my girlfriend. but you should leave them time to consider it. otherwise they will feel too rushed.