New guy at work - how to flirt but keep professional? 🤣

Guys! There’s this new guy at my work but he is a lot more senior than me (career wise) - he is only around 6 years older but as soon as I saw him I just instantly crushed 😍😍 we work in the same office but he has his own private office bcus he is a lawyer (confidentiality purposes) and I’m in marketing... so it’s unlikely that we will cross paths or work together but I can find an excuse to see him about t&cs for deals and marketing offers 😳

I want to flirt with him but don’t know how to start without being too obvious or unprofessional... we’ve been giving each other the eye - like we’ll both catch each other looking at one another and then quickly look away 😅😳 and I get the feeling that I caught his attention as we’re the youngest people there (he is in his early 30s and I’m mid 20s, everyone else is 40+)

So have you got any advice on how I can indirectly make it clear that I’d love to go on a date without being unprofessional?