His eyebrows rose just a little as she fixed him with that glare. Sure that he'd somehow done something to earn it. Yet he had no idea what. The expression didn't stay long, he had to fight a flinching when she turned to face him. Sure that she was going to take a swing, even if he wasn't sure what he'd done to deserve it. Still the title wiped all that away, making way for a broad grin as she stuck her hand out.
Slipping his hand into hers Bucky gave a hearty shake. "The honour is all mine Agent Margret Carter. And I'd be even more honoured to warm up that dance floor with you."