Well. It wasn't unusual to find alien species that looked so different, but Sulu was pretty sure he'd never seen anything like Janet before. The angular arch to the eye sockets was kind of familiar, though...

"Hello, Janet," he said idly, not thinking twice about giving a greeting to a carnivorous, face-eating alien. (When you go to a university where vaguely-humanoid aliens are your professors, it becomes a default reaction to any extraterrestrial life.) "Just so you know, Ianto, I am really resisting leaning in and poking, right now."