First you need to be yourself and if he hasn't notice you by now, try changing your appearance some but not to much, you don't want to draw the wrong attention. And try talking to him to get to know him better ans so he can know you better.
A 7 year old girl can like a boy. Love would be unlikely at that age.
personality
you don't!!
It is fine.
a 12 year old boy could like a 11 year old girl cause it could be many thing your personality your loveliness etc etc it depends
for a girl not over 100 and a boy like not over 130
Well, don't force the girl she might just not like him and are you talking about like or love?
because they talk about them
Two words:Act mature!
It depends on their personality.
Tell him you like him.
you dont