He's Security. She has to be on her best behavior with Security or it'll be held against Kri'Stak somehow. Never get careless in front of the Law. Everybody knew that.

...However, how one was supposed to be around a Vulcan was mostly limited to 'be somewhere else.'

Breathe. "Understood, Sir," she says as professionally as she can manage. "My name is Dahlfes. The First Officer and I are here on exchange -- but you probably know that, of course. How may I help you?" Because she has no idea.