I need help with a guy... guys and girls answer>>?

i know this guy were kinda friends we r my mom and his uncle r friends.... i went on a camping trip with him and to the movies with some other friends and he came so i guess we have kinda hung out but i really like him... i dont c him much like maybe twice or 3 times a week.... we go to seperate schools... i think he likes me but not for sure but i deffedently like him how do i show him that i like him..... he seems kinda uncomfortable around me... does that mean anything? what is small talk to him?? i mean like he is kinda quiet and im not but i dont want to be evr bearing... i know he has a nother side ive seen it but i have to bring it out in him... how do i do that guys..