[Yeah the whole stone face thing is kind of out there, but she had suspected something was up with him last time they ran into each other. This up close she can see it. Stone? Stone is a bit too much when she has to kiss it. This might almost be as weird as the troll girl who talked in fish puns.
The robot calls out "Kiss!" and she can feel the barrier shrinking a little around them.]
Okay, I can't do this. [She digs into a pocket for a second and pulls out a little stick and hands it to him.] Put this on first. You've got to have the worst case of dry lips in existence.