ask my crush out

I kind of know he may like me. Sometimes i see him looking at me when i don’t look and the other way around. We have talked a few times and smile at each other. I don’t kwow how to tell him that i like him, and i don’t know how to find out if he likes me too. It has been almost 6 months since i like him and the last few months it has been very crazy for me. What should i do? I have mention to one of him friends that there is a guy i find cute and that is him, hopefully this guy will tell him so he knows that i like him, in the mean time i will wait and see.. and be myself….