Bobbie has been pumped with bone density drugs almost since birth, and she spends an inordinate amount of time exercising and training at one-g, so there isn't a drastic difference. She is tall, though, hovering at around six feet. If he got her planetside, under an open sky and in bright sunlight, her nausea and disorientation would be a dead giveaway. Here on the station, her tells aren't so obvious.

"I'm from Mars," she repeats, shrugging. "As far as I know, there are only two Martians on this station. A lot of Earthers, though."