My uncle married a woman, he works with. Different departments. I once dated a man, for two years, same company, different locations. It can work. There are also, lots of reasons why it can make for an awkward scenario, too. With that said...

I'm not a fan of women making the first move. Some men, claim they like that, but do they really? Something about the 'chase' that can lead to a sense of balance in the relationship.

With that stated. You want to toss your cards on the table, but in a way, that leaves everything, a bit less awkward? Ask him, if he'd like to grab lunch together on break or maybe a coffee??