Wes clarified what I didn't say very well - while I did suggest posting about Akane's actions without necessarily having to force her into a conversation, I didn't mean to make it sound like I was suggesting you to post about every little mundane thing. That, as our beloved GM pointed out, is boring.
Offer a little insight into Akane's thoughts, or if you prefer not to allow the readers to know what's going on in her mind, express it in her body language. Give the readers some kind of idea what sort of person Akane is. Make us
want to know at least a little more about her. It doesn't have to be anything like a huge in-character history told via a soliloquy, but little things that give hints into her personality, and provide clues to other characters present as to how they might approach her.
As Wes said, the Eucharis crew are Akane's coworkers and family. It's really in her best interest to at least make an attempt to break the ice with somebody, otherwise she's going to be miserable, to say nothing of failing to build trust with the people whose lives will be in each others' hands. I know it's tricky to play quiet characters who shy away from social interaction when you, the player, really want him or her to be involved with the other characters, but if you give the rest of us just a little bit to work with, either I or one of the other incredible RPers in this plot will take it and run with it.