[since he's looking down, he won't see her tense up at that, although he might feel it as she's in the process of measuring his head with a tape measure. she pauses briefly--and then she finishes what she's doing, writing down the results]
[softly] Thank you; that's all I needed.
Perhaps...you should speak to the Doctor. [she can't meet his eyes as she says it]
no subject
[softly] Thank you; that's all I needed.
Perhaps...you should speak to the Doctor. [she can't meet his eyes as she says it]