What do you do when a 11 year old girl loves a 12 year old boy?

Be yourself, be nice, get good grades. You're too young to be worrying about that kind of stuff - if the boy likes you, then it should be because you're focused on schoolwork, family, and friends rather than chasing him. I'm 14, and I still haven't "dated" yet. It might seem like a long time, but it will be better in the long run if you stop worrying about boys for now. :)