does he like me...or is he just a flirt?

ok...justin(his name)rides my bus..we talk about video games and he loves soccer...he just made the team...anyway,one day,he and his friends were sitting behind me in the bleachers and one of them patted me on the of justin's friends said that justin told him to do it...i believe his friends,but i also believe him.i've went out w/t him before in the 6th grade...thats when we kissed each other on the cheek...recently,he smiles and talks to me alot,but i never see him after school unless he is not staying for soccer practice...i need help...(we are both in the 8th grade and 13...he's older than me by 1 month and 16 days)