LADIES! How do you compliment a guy you like?

short story: there is this guy at my job who i see everyday and i think he’s so fine!! problem is i have no idea what to say to him bc we never cross paths like that unless i see him going to the bathroom pr whatever. anyways i’m thinking i should compliment him since men don’t really ever receive compliments from women , but what should i say? “oh hey i like your shirt” is the only thing i can think of🥴 (btw i work in a warehouse and i’m 21)