Boy help plzzz! beggin u!?

okay so theres this guy named eric that goes to my school. i have just started likeing him recently. we liked each other in fifth grade than never talked again:( now he is talking to me!:) he compliments somtimes, he starees at me so friggin much!!! like 30 times a day and tries to get near me i think. i dont know if i should talk to him and in gym he tripped me by accident in kick ball and i stumbled and really hurt my leg but i didnt show it. so when it was silent he yells... "theresa r u okay?!" like legit loud!!! and he ran into me i always blush cause he is ALWAYS lookin at me wat should i do and when and how!!!!! thnxs:)