Crush at work, advice?

I think this boy that I work with is cute. We don’t ever see eachother/have the chance to talk because he’s in kitchen and I’m in another area dealing w/ ice cream (we work in fast food) I’m 17 and he’s 18. I kind of want to add him on facebook, (it won’t be weird cause we have a groupchat for work/an app that tells us our schedule and everybody’s first & last names are listed). I’ve never really talked to him, he has another job so I don’t really see him anymore. (Although I don’t think I’d be brave enough to talk to him) I saw him at his second job not too long ago, I looked like shit though :(

He also knows my little brother and hangs w/ people that my brother and I used to know. I don’t want to get at him if he acts like them, I don’t want him to go around telling people and my brother that I like him/think he’s cute if I were to tell him. I don’t know how he is though so who knows.

So, should I add him/ get at him?? Ugh, it’ll be wack/embarrassing if he turns me down/ says he’s not interested. What if he goes around telling people? That’ll be embarrassing lol

I just don’t want to get rejected

Should I just say fuck it and go for it? And add him on facebook or maybe (doubt I will) talk to him in person?