[She gives it several hours. The meeting runs long, and it's reliant upon a lot of technical details, which Pepper knows because she's studied them up, determined the components that she needs to look for. It's nothing like having an innate sense of what works: like staring at a painting instead of seeing one color distinct from another as an artist would be able to.
Several hours and she tries again. Another call put in to JARVIS, another pause in a cab-ride on the way back through the city. Another 'please could you get him, and I don't care if he's busy.' There's irritation that absence, attributed to cold coffee, blueprints, Aerosmith over the stereo-system is causing a kernel of worry to take seed. Irritated, she can deal with.]