She can't see much of the smile through the reflective sheen of Tali's helmet, but she can hear it in the Quarian's voice clear as day. And that's-- something. Strips the latent unease from her skin, has the uneasy hovering of her weight over the balls of her feet shifting - settling - rocking back onto her heel. Shepard's chin quirks up, a mild inclined angle like a nonverbal question mark. But she can't help herself. "Hold on might?" Not exactly the most promising wording, but she's willing to give her the benefit of the doubt. Kind of. "Is this the part where we test it and if something goes badly, I haul you over my shoulder back to medical?"

Because Tali, they could probably do it a hell of a lot closer to the CDC's basecamp facility if that was the case. Seemed like a far way to run if something didn't go as planned.