Medallion Trigger: N, unless she's actively using her Ruby powers which he'd be able to see anyway.
Scent: Gunpowder, leather, warm vanilla perfume, roses
Pulse Detected: He can totally tell if she's scared or excited. Telling if she's lying would be a bigger challenge. I'd say she's pretty skilled at it, but if we want to do something character driven with that someday, I'm good with it.
Gait/Breathing: He'd be able to hear her. She's still just an average human without supernatural stealth.
Axii: N