△ What part of Garrus's body does Grace appreciate most?
The fact that she blushes before answering tells you that, whatever her answer is about to be? She had a different one first. (That first honest answer, which is a 10 on the scale, and which she won’t actually say but I can tell you what it was, was, “His heart.” And she doesn’t just mean emotionally. I think she’s genuinely glad that, after all the scares they’ve had, that damned heart is still beating.)
The answer she gives, also reluctantly–not because it’s embarrassing, really, but because she tends to keep personal stuff close to her chest even at the best of times–is, “His hands.” She doesn’t elaborate, but her tone of voice says she’s not thinking of anything sexual. She’s perhaps thinking of the number of times those hands have been there for her; how they shook around that stupid bottle of bad wine; how tender they can be and how dangerous–she likes both. They’re capable hands. They’re a master’s hands.
The answer Jack yells from across the room so everyone can hear it is, “You’re a liar, Girl Scout! We all know it’s his tongue! Or maybe his–”
“Thank you, Jack,” she replies dryly. “I believe we get the picture.”