Finding "hidden" outfits generally refers to one of two things: discovering items that aren't appearing in standard search results or viewing what another user is wearing when they have "hidden" their outfit details.
The Ultimate Guide to IMVU Emporium Hidden Outfits and Exclusive Looks imvu emporium hidden outfit exclusive
If you have curated a perfect, one-of-a-kind ensemble and want to ensure it remains your "exclusive" signature, you should use the privacy tools provided by IMVU: Finding "hidden" outfits generally refers to one of