personally, I couldn't be arsed with a work colleague way too much effort.

but if you're interested in her, start by kino'ing her like fuck, I'm not talking creepy shit just keep a constant flow for example, high five her at the coffee machine if you're chatting and you agree on something, lead her into the lift with your hand in the middle of her back, then release once you are in the lift. etc etc, etc


then close her as suggested above works night out, if there isn't one for a while arrange one yourself any excuse got paid, my dogs birthday whatever.