Tony probably wouldn't have felt it anyway. He stumbled slightly at the grip on his collar, shoes scuffing the floor and heralding a long, tense silence in the room while the observers held their collective breath. And, Jesus, he was alive. Captain America was looking up at Tony with those blue, blue, hero blue eyes.
He didn't know how long it was before he answered, "Uh." Before he could be any more articulate, he had to blink, then force himself to look away which didn't last long but reminded him of the perseverance of reality. "You should..." he tried to encourage, careful hand on Captain America's wrist to get him to ease up and relax. "You've been asleep a long time, buddy."