[Tony rolls into view on his little stool. He's being more careful about the lab and the tech these days. JARVIS takes several other measurements, including her fingerprints, air pressure caused by her presence, and temperature while she's tapping in the code. The door opens while he's taking a drink from his smoothie, which, today, is not green, but mango orange. Splurge.
Tony's built a rolling footrest to go on his stool and he already has grease up to his elbows. A slowly rotating image of a man's arm and shoulder hangs in the air to one side, inscribed in blue light. Tony is taking apart something else, multitasking while he thinks.