Widowmaker made herself soften her eyes a bit at that touch, a conscious effort when with someone she didn't have any attachment to, even,if she generally liked Garrus. As he laid down, she moved to kneel beside him, lightly laying a cool hand upon what was appeared to be an ankle. Turians had such odd legs, so she couldn't really equivocatr what part of his leg she was actually touching, but it worked to convey the comfort her persona was meant to give.