Okay, I do not know what to do?

So I have a mive crush on this eightj grader (im in 7th grade), named Logan, which is also my brother's name. The thing is, I don't know if he likes me too. We have the same P.E. period, so when he goes in the gym to play bball, i go and watch him, but he doesn;t know i am coming jsut for him. once, he said to me, watch out, make sure you don't get hit! to me, that melted my heart! lol. well, i just got home from a 2 wk vaca, and i will go back to school on mon. i had to miss school. i wanna talk to him on mon. but i don't know how or what to say. any advice?