"Coulson?" Steve asks, and drops the chair he's holding. So, he had no idea Phil was even here, and it's not quite as big of an emotional shock for him as it was earlier today (and thank god, because who can process two of those in such a short time?) but it doesn't stop him from breaking out into a wide smile. Seeing him again, whole and uninjured and alive is pleasant, even though he knows there's a high probability it won't last very long. Still, he claps the man on the shoulder, because, at the very least, there are few places on this map more secure right now than a room full of Avengers.