While Edit window is open, right/left click on an avatar and it will often select through them. This often includes your own avatar, especially if it's the base body (like BoM). Right click out of Edit will pretty consistently bring up the correct item for inspection.

This is a typical way I check to see what another person is wearing, and it's especially useful if I need to check links for particular names or features. More often than not, this is for moderation or when a friend is asking for help.