Gina does keep Gaius waiting, and it's intentional. There's something she likes about watching him watch for her that can be interpreted as endearing as much as it's also something of an asshole move.

She's done away with the lace and velvet of the clothes gifted to her by Severus Snape, but apparently enjoyed the dark colour scheme. The dark cargo pants are practical and a leftover sensibility from her previous life. The thin coat she wears over a beige tank keep the night's chill at bay. The cup of cocoa in her hands helps with that as well.

"I'd forgotten how much I like this," she offers rather ambiguously in greeting, stepping into Baltar's periphery finally.