Asking a guy out (at work)?

Ok so I like this guy at my job, and I don't know maybe I’m over thinking but we have these stare offs, and he’ll always say hi and bye to me…and my stalker ass would watch him with the other girls at work and he doesn’t talk to them (unless he does when I’m not there or some shit) so basically I wanna ask for his number, but I don’t wanna come off weird, should I just ask for his insta first, or how should I approach him? (Mind you we work at a grocery store) give me some scenarios!!!
Asking a guy out (at work)?
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