What should I do does he even like me?

Were in 7th grade and I REALLY REALLY REALLY like this guy!! And I THINK he likes me too because�he flirts with me by pocking me and tickling me and squirting water at me. Whenever we have a conversation it's always funny and happy and were smiling. When I'm nervous and smile at him he laughs. he took my Walet and put it in his front pocket and pushed it down and told me to get it then he put it in his back pocket then he made me chase him a little to get it back. He flirts with a little but if girls though but when he dies with them he just makes em laugh but when he dies with me he puts more effort and feeling into it. One of my friends told him that I liked him he said "okay...yeah I already know" but after he found out he talked to me less for a while but then he started talking to me mire than usual and he said "you never give me hugs" then he hugged me:) and after that my friend saw me smile and gave me and him a look and he's like what with a smile. He started giving me more hugs and stuff. But I want to SHOW him that I like him and I want to find out but idk how...???