[FLASHBACK] SHIELD Headquarters
"Thanks, Stark. Let's see what I can do with this."
Steve starts using some of his usual shield moves, but quickly discovers that this shield behaves completely differently from his old shield. He discards techniques that no longer work and figures out a few that work better.
"Looks like I'm going to need a whole new playbook," he says. "Let's see how the other guy feels."
After hanging the shield on the arm of the mannequin, Steve gives the shield a few punches and kicks, from various angles. He actually knocks himself down a few times and he hurts his hand, but he seems to learn a few things. When he puts the shield back on his arm, Tony sees a whole new set of moves, based on what Steve learned.
"I wonder how it will bounce, if I throw it? The round shape should make it easy to throw and control its flight."
Steve throws the shield at the solid, concrete wall. It penetrates the wall and gets stuck."
"Oops. Sorry."