I can get you mugshots, so to speak, of the other two bodies I'm mostly to be wearing around. Aoife's likely to be the one I'm in most often. (Yes, different bodies all get different names.) Other than that, um, password? Secret handshake? Lanyard? ID card worn on lapel? (Except I don't wear anything that has lapels.) Or, you know, there's the easy thing of dropping unfamiliar mimics if I'm spending actual time in the office.