Is it ok for a 14 year old boy to really like an 11 year old girl You can't stop thinking about her but barely spend time around her and are too shy to talk to her What do you say to her?
Of course it's ok. These practice feelings are perfectly natural and fine, and the fact that they're not permanent doesn't take anything away. They are strong and real just as they are.
And you don't have to say anything to her. You can admire her from afar and just experience the things you are feeling about her. When you are a little bit older and are attracted to somebody this way, you will have a better idea of what to say to her.
For now, it is enough just to be friendly and kind and maybe a little bit funny if you have the chance, as long as you don't make a mean joke about her or anybody else.