I think they'd figure out Janeway was Captain based on the pips. Worf's argument was his personality and his sash.
Tuvok would probably assume he's first officer. Seven would probably revert to her Anika personality. Neelix might think he's an official part of the crew.
Tuvok would probably assume he's first officer. Seven would probably revert to her Anika personality. Neelix might think he's an official part of the crew.