You like this guy but you don't know if he likes you back?

im quite young so i know this works....

you could flirt with him and see if he flirts back or.....

if you don't know if he likes you then show that you like him and see what his reaction is but if that doesn't work then look for signs like he looks in your eyes and talks to you and sit next to you or hes all shy or showing off in front of you.

theres another way you can make the guy jelous and if he reacts all sad or angry then he likes you.

hope this helps :) <3 xx