Watching Steve closely, trying to decipher for both of them what he was trying to say, Tony didn't hide his smirk this time. It curled slowly to blossom into a toothy grin with his nose scrunched until he bowed his head again, blinking rapidly, jaw too tight.
"I know," was all he left his friend with, reaching like he meant to part with a pat to the shoulder but missing by feet as he stepped away and just letting his arm drop instead.