How to approach a guy

There’s a guy I see often at my workplace. I don’t know anything about this guy except for the fact that he always looks put together, often gets coffee in the morning, has nice hair but often wears a hat. I’m always working when I see him, he’s always about his business(he works at another store nearby). I think he’s attractive and I would like to know if he’s single and also a believer. I obviously wanna keep it light for the first time I say a word to him but I don’t know what that could be.

What’s your advice for me?

[Edit] I’ve thought about it for a bit and honestly I don’t think I’m ready for this. As much as I want to know more about this guy, looking at my past tendencies it’s all too risky.