Sariel does discreetly nudge him; you never can be too careful. "His species is called Cardassian," she explains. "Anyone with nose ridges is likely Bajoran, and--oh..."

the reason for the murmur? Several very large, very imposing-looking aliens who've just piled out of a nearby restaurant. "Those are Nausicans," Sariel finishes after a moment. "they aren't generally very pleasant to Starfleet officers." Translation: Let's keep the heck out of their way, shall we?