crush, i guess

UGH so i've known this boy for like 5 years. he's super cute, really smart and has a cool personality. yes, i have a huge crush on him.

however, the only problem is, the last time i saw him was 3 years ago. to make matters worse, the last time i remember talking to him, i yelled at him! (but for a good reason, trust me)

but now as a freshman in high school, i see him around A LOT. things are kind of awkward and we haven't spoken to each other at all. but i catch him looking at me a lot.

what should i do? should i be dumb and just talk to him again? or should i just leave things alone.. i dont know