Please answer.....i have no idea if my crush notices me or not..?

I have the BIGGEST crush on a junior and i am a freshmen. i have never spoke to him b4 but he is really hot and i hear he is super nice and he is also a great student. So today at lunch i was sittin at a table w/ my friends and he was at a table in front of me w/ his friends. When I was talkin to my friends i would be laughing an everything and then i would glance over at him and he would glance over at me and then i would smile and everything. we made eyecontact w/ each other like 5 times. I just don't want him to think i am creepy or somethin cuz he probably don't even know who i am. why do u think he kept on glancin over at me??? what should i do??? i really want to get to know him cuz i have the biggest crush on him and people say he is a really good guy but we have no cles together just lunch.........