does he like me??

ok so im in 6 grade now and in kindergarten me and the kid i like we used to be best friends until he moved away :/ lol but now hes bak and i think he likes me? a couple of times when i see his in the hallway i lookbak n hes lookin at me n turns away real fast. or wen hes talking to his friends and i pass his he gets real quiet. he used to like me in grade school like last ano lol but idk now cuz he knows of me now but we dont auctally talk except on fb n stuff. and he kinda ignores me so idk wat do beileve help??!