PLZ REPLY GUYS!!! Does he like me or wat?

This guy that I met a while ago is so cute. Hes a grade below me but hes the same age. Hes always looking around the cafeteria in the morning to find me and when he catches my eye(which im always looking but he doesnt always no) he always smile rlly big or waves. Yesterday he showed me a pic of him and his abs. (weird, but they were HUGE) then it was like 20 degrees outside so he started rubbing my shoulder for some reason and standing right beside me and my friend was like WOW. so then before he left he acted like he was going to hug me so i started to raise my arms but he put his back down and lifted them up again and had this piece of paper rolled up to look like a microscope and looked through it at me. then the next day(today) he did the whole bump thingy. i rlly like him and ive liked him for like two weeks but im just scared that maybe he doesnt like me. do you think so and do you think he will ask me out? wat should i do?