"Okay..." he mused, he hadn't really expected anything different from his blood pressure. It made sense, given the symptoms.
He was frowning at first, because to him, an ECG was a large, cumbersome piece of equipment, and he couldn't imagine what he would be doing other than just lying there being monitored. So, when he said he wouldn't notice it, Bobby gave him a look of confusion, and then softened into a smile when it became clear. "Oh! Okay. Yeah, that sounds like a plan," he nodded.